ULUSLARARASI KATILIMLI

IV. SERAMIK KONGRESIBiLDIRILER KITABI

WITH INTERNATIONAL PARTICIPATION

IV. CERAMIC CONGRESSPROCEEDINGS BOOK

22-25 EYLUL / SEPTEMBER 1998,

ESKIS. EHIR - TURKIYE

EDiTORLER / EDITORS

Servet TURAN • Ferhat KARA • Ersan PUTUN

Anadolu UniversitesiSeramik Miihendisligi Boliimii

Eski§ehir-Turkiye

ICINDEKILER / CONTENTS

BOLUM 1 /PART 1

GELENEKSEL SERAMIKLER / TRADITIONAL CERAMICS

Siirecjer / Processing

Processes technology in whitewares where do we stand and what is to be expected ?Vitrifive iiriinlerde proses teknolojisi: neredeviz, ne bekleniyor?H. REH (CAGRIL1 KONU§MACI-INVITED SPEAKER) 1

A simple quality control technique for determining the plasticity of ceramics bodiesSeramik biinvelerin plastisitesini saplamak igin basit bir kalile kontrol teknigiS.A. KESSEL, G.J. SMALL 7

Transmission electron microscopy of fired bone china body microstructurePi$mi$ kemikli porselen mikroyapisinin gecirimli elektron mikrokobuHe incelenmesiA. KARA, R. STEVENS 11

Magnezyum silikat esasli mineral seramiklerin sinterlenmesi ve ic, yapi geli§imiSintering and microstructural development of magnesium silicate based ceramicsE. GUNAY, T. BAYKARA, T.O. OZKAN 19

Turk sepiyolitlerinin elektrokinetik ozellikleriElectrokinetic properties of Turkish sepiolitesE. SABAH, H. SAGLAM, H. OZDAG, M.S. CELIK 25

Saglik gere§leri dokiim 5amurlarinin reolojik ozellikleri iizerine elektrolitlerin etkisiEffect of electrolytes on the rheological properties of sanitary ware slipsE. OZEL, N." AY, E. PUTUN 33

Granit seramigin ozelliklerine kuvarsin etkileriEffect of quartz on the properties of graniteN. AY, E.C. ARICI 41

Duvar karosu iiretiminde perlit kullanimiUse of per lite in wall tile productionN. AY, B. TAS.PINAR 47

Kir§ehir-Kaman yoresi nefelinli siyenit cevherinin seramikte kullanilabilirligi iizerineyapilan on ara§tirmalarPreliminary investigations on the useabilitv of nepheline syenite ore in ceramics fromKirsehir-Kaman regionA. KARTAL, W. SCHULLE, O.F. EMRULLAHOGLU 53

The change of phase composition in kaolinite-and illite-rich clay based ceramic bodiesKaolinitik ve illitik kil bazh seramik biinyelerindefaz kompozisyonun degisimiA. ARAS '. ' 59

Demirci yoresi zeolotik tiiflerinin seramik biinyelerde kullaniminin on 9ahs.masiPreliminary investigations on the useabilitv ofzeolitic pumists in ceramic bodiesfrom Demirci regionA. ARAS, S. ICOZ, H. DEMIRHAN, M. DEMIRHAN 67

Cati kiremitlerinin renkli sirlarla kaplanmasiApplication of colour glaze on roof tilesB. KARASU, E. AKGUN 73

Misir9amuruEgyptian pasteA.T. OZEN, G. ALPMAN 79

Tarih boyunca seramik sanatinda astann kullanimi ve Canakkale yoresi killeri ileperdahh astar uygulamalanG. KARADENiZ, A. ARCASOY 85

Atiklarin Degerlendirilmesi / Recycling

Elektroliz atiginin tugla biinyelerinde renklendirici olarak degerlendirilmesiUtilisation of electrolysis waste in colouration of building brickB. KARASU, N.' AY 91

Borminerali atiklanndan Uretilen camsi maddenin olasi kullanim alanlanPossible application areas of glassy material obtained from boron mineral wasteC. YAMAN, M. MARS.OGLU 97

Yiiksek firm curuflan ile gencer aliiminyum atiksu antma 9amurlannin yapimalzemesi olarak degerlendirilmesiUtilisation of blast furnace slag and aluminium waste water treatment mudas a building materialB. KAVAKLI, A. ARCASOY 103

Seramik sanayii atiksulannin ozellikleri, antilmasi ve kontroliiProperties, purification and control of waste water from ceramic industryM. KAVAKLI : I l l

Etibank Kirka-Boraks isjetmesi konsantrator atiginin sir hammaddesiolarak degerlendirilmesiUtilization of Etibank -Kirka boric acid plant waste as a glaze raw materialS. GENC, V. SEVINC, A. OZS.EKER, M. CAKI 119

Boksit atigi kullanilarak Uretilen ak9ini sirlannin fiziksel ozellikleriPhysical properties of glazes derived from bauxite plant wasteN. YALCIN, V. SEVINC 125

U9UCU kiillerin sofra e§yasi yapaminda kullanimiUse of fly ash in the production of tablewareN. AY, S. E§MELiLER 131

Fe2O3 ve CroOg'iin renk olu§umuna etkileriEffect ofEejOi andCr2Oj on colour developmentN. AY, M. CAKI 137

Pigmentler / Pigments

Zircon ceramic pigments synthesis by the sol-gel methodSol-jel metodu ile uretilmis zirkon seramik pigmentlerT. DIMITROV, L. GEORGIEVA, E. HASAN 143

Ceramic pigments in the quaternary system NiO-ZnO-TiO2-SiO2NiO-ZnO-TiO2-SiO2 sistemindeki seramik pigmentlerM. PREDA, A. MEGHEA, I. RAU, H. REHNER 149

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Cimento ve Beton / Cement and Concrete

Sogutma hizinm 9imento klinkerinin ogiitiilebilirligine etkisiEffect of cooling rate on the grindability of cement clinkerI.A. ALTUN .' 155

Hydration processes and mechanical properties of some DSP cement compositesBazi DSP cimento kompozitlerinin hidratasvon prosesleri ve mekanik ozellikleriM. GEORGESCU, A. BADANOIU.'. 161

Consideration concerning the portland cement hydration and hardeningin the presence of some organic polymersBazi organik polimerlerin varliginda Portland cimento hidratasyonu vesertlesmesi iizerine du$uncelerM. GEORGESCU, M. COARNA, A. CONESCHI, B. MARCULESCU 169

Refrakterler / Refractories

Korund-karbon refrakter malzeme uretiminde re9ine kullaniminin optimizasyonununara§tinlmasiInvestigations on the optimization of resin content in corund-carbon refractoriest.A. ALTUN 175

Kur§un endiistrisindeki bazik refrakter malzemelerin korozyon kinetigi ve bnlemleriCorrosion kinetics of refractories used in lead industry and protection measuresLA. ALTUN....; . . .; ". 181

Yiiksek demirli boksitlerin refrakter uretiminde kullanilmasiUse of high iron containing bauxites in the production of refractoriesT. ABKAN, C. YAMAN 187

Investigation of thermal shock resistance in model magnesia-spinel refractory materialsModel magnezva-spinel refrakter malzemelerinde termal sok direncinin ara$1inlmasiC. AKSEL, R.W. DAV1DGE, P.D. WARREN, F.L. RILEY 193

Dry refractories for steel induction furnacesCelik indiiksivon ocaklan icin kuru refrakterlerN. ANGELESCU 201

Sintering and characterisation of AhC^-chromite compactsAI2O3 - kromit biinvelerinin sinterlenmesi ve karakterizasyonuJ. PRASAD, A. GARG, T.K. DE, M.S. MUKHOPADHYAY 207

Sintering and characterisation of MgO-CnQ? compactsMgO - Cr2O$ biinvelerinin sinterlenmesi ve karakterizasyonuJ. PRASAD, G.N. AGRAWAL, K.C. CHATTERJEE 215

Manyezit-Krom refrakter tuglasinda sinter manyezit cevheri tane boyut dagihmininkalite iizerine etkisiEffect ofmagnesite particle size distribution on the quality of magnesite-chromiterefractoriesN. ERDOGAN, M. KAYA, H. KURAMA 223

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Digerleri / Others

International quality standards for tiles, sanitaryware and tablewareKaro, vitrifiye ve sofra e^yalarimn uluslararasi kalite standartlanW.L. WALTERS, P.S. "HANCOCK, N.J. LEAK, G.J. SMALL(CAGRILI KONUS.MACI-INVITED SPEAKER) 229

Tiirk-Avrupa seramik karo standartlan iizerine gozlemlerObservations on Turkish-European ceramic tile standardsI. AKKURT 235

Bazalt cam-seramiklerinin korozyon davrani§iCorrosion behaviour of basalt glass ceramics§. YILMAZ, V. GUNAY 243

Lazer ile dogaltas. modifikasyonu iizerine kar§ila§tirmali arastirmalarComparative studies on natural stone modification by laserM. ZEREN, §. KARAGOZ '. 249

Olgun bir sanayi dalinda teknoloji yonetimiTechnology management in a mature industry branchB. KUBAN ' 255

Turkiye'de seramik mUhendisIigi ogretimine genel bir bakis.An overview of ceramic engineering education in TurkeyR. ARTIR ." 261

Technological properties of some medieval glazed pottery in AnatoliaBazi sirlanmi^ Anadolu Ortaca^ comleklerinin teknolojik ozellikleri§. DEMIRCI, E.N. CANER-SALTIK, A. TURKMENOGLU, H. BOKE 267

Ceramic of gumelnita"Gumelnita" seramigiV. BURGHELEA, G. NICULESCU, I. STANESCU, C. POPA, S. BARZOI 273

Aktif silikanin porselen biinyenin mikroyapisina etkisiEffect of active silica on the microstructure of porcelainS. KURAMA, N. AY, S. TURAN, E; PUTUN 279

Oksitleyici atmosfer §artlannda Uretilen porselenlere 9inko kristal sin uygulamalanZinc based crystal glaze applications on porcelains sintered under oxidising atmosphereB. KARASU, M. CAKI 287

Kromitin emaye ve seramik UrUnlerde siri^i ve sirustU boyaolarak degerlendirilmesiUtilisation ofchromite as inglaze and overglaze pigments in ceramic productsS. §AHiN, S. GENC, M. CAKI 295

Kadmiyum ve selenyum bilesjklerinden emaye ve seramik fritleri i^in siri^i vesirUstU dekor boyasi uretimiInglaze and overglaze decoration pigments from cadmium and selenium compoundsfor enamels and ceramic fritsS. §AHlN, S. GENC, M. CAKI 299

Kutahya-Maltepe kirmizi kilinin seramik 9amur ve astar Uretiminde kullanimiRed clav from Kutahya-Maltepe region for ceramic bodiesM. CAKI, M. CAKI, F. AYDOGDU 303

Pirometrik konlar Uzerine bir ara§tirmaA study on pvrometric conesG. SUME'R 307

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BOLUM 2 / PART 2

ILERI TEKNOLOJI SERAMIKLERI / ADVANCED CERAMICS

Oksit seramikler / Oxide ceramics

Current trends in freeze-drying technology of oxide powders and ceramicsOksit tozlan ve seramiklerini dondurarak kurutma teknolojisinde ki giincel egilimlerO.A. SYLYAKHTIN, N.N. OLEINIKOV, Y.D. TRETYAKOV 313

Synthesis of AI2Q3 powder via homogeneous precipitation by urea at 25°C25°C'de u're ile homojen cokturme sonucu AI2O1 tozu senteziF. KARA, G. S.AHIN ." 319

Alumina formation by aluminum powder oxidationAluminvum toz oksidavonu ile alumina olu$umuE. SUVACI, G.L.' MESSING 325

Reaction kinetics of aluminum particle oxidationAliiminvuni partikiil oksidasyonunun reaksiyon kinetigiE. SUVACI, G. SIMKOVICH, G.L. MESSING 333

AI2O3 esasli yapisal seramiklerin du§Uk basin9h enjeksiyon kahplama ybntemiyle§ekillendirilmesiShaping of AI2Ophased structural ceramics by low pressure injection mouldingY. PALACI, E.S. KAYALI 339

Microstructure and microchemistry of Y-doped 01-AI2O3Ykatkili (zAljO^'nin mikroyapisi ve mikrokimvasiM.A. GlJLGUN", M.L. MULVIHILL, V. PUTLAYEV, M. RUHLE 345An ELNES study of yttrium-segregated grain boundaries in alpha aluminaYitrivumca zengin alfa alumina tane sinirlarinin ELNES calismusiM.A. GULGUN, W-Y CHING, M. RUHLE 351

Orientation imaging microscopy of alpha aluminaAlfa aliiminanin yonlenme mikroskobu ile goriintiilenmesiM.L. MULVIHILL, M.A. GLJLGUN, E. BISCHOFF, M. RUHLE 357

Seydi§ehiraluminasininmetalografikparlatmai9inkullamlabilirligininara§tinlmasiA study on the utilisation of Sevdi$ehir alumina in metallographic polishingM.S. BA§PINAR, S. ZEYTIN, O.F. EMRULLAHOGLU 363

Hydrothermal synthesis of zirconia nanopowders and thin filmsZirkonva nano tozlar ve ince filmlerinin hidrotermal senteziR.R. PITICESCU, T. VELEA, A. ANDREI, C. MONTHY 369

Applications of ceramic superplasticitySeramiklerin siiperplastikliginin uvgulamalanS. TEKELi .' 375

Static and dynamic grain growth during superplastic deformationof yttria-stabilized tetragonal zirconia polycrystalsYitria ile stabilize edilmi§ zirkonva polikristallerinin superplastik deformasyonuesnasinda statik ve dinamik tane biiviimesiS. TEKELi ; 381

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Oksit-disi seramikler / Non-oxide ceramics

eramics: Processing, microstructure and mechanical propertiesS13N4 seramikleri: Uretimi, mikroyapisi ve mekanik ozellikleriM.J. HOFFMANN (CAGRILI KONUS.MACI-INVITED SPEAKER) 387

Novel developments in K-SiAlON ceramics(Z-SiAlON seramiklerinde yeni gelqmelerH. MANDAL, M.J. HOFFMANN 393

Multi-cation doped ft-SiAlON ceramicsCok katvonlu exSiAlON seramiklerE. DOLEKCEKIC, S. KURAMA, H. MANDAL, R. OBERACHERM.J. HOFFMANN, D.P. THOMPSON 395

High temperature thermal stability of calcium containing ft-SiAlON ceramicsKalsivum iceren t&SiAlON seramiklerinin vu'ksek sicaklik stabilitesi.H. MANDAL, D.P. THOMPSON.... 401

ft-SiAlON ceramics with elongated grain morphologyignesel tane vapili txSiAlON seramiklerH. MANDAL, M.J. HOFFMANN 409

The parameters effecting the a«-»p-SiA10N transformationitf-*l7SiAlON donusiimunu etkileyen parametrelerN. CAMUS.CU, D.P. THOMPSON, H. MANDAL 417

The variation of ft-SiAlON stability region in different rare-earth K-SiAlON systemsFarkh nadir toprak &S1AION sistemlerinde e&SiAlONkararlihk bolgesindeki degi$melerN. CAMU§gU, D.P. THOMPSON 423

Planar defect structure of boron nitrideBor nitriirde du'zlemsel vapi hatalanS. TURAN, K.M. ' KNOWLES 429

Nitridation behaviour of sub-micron, monodisperse S1O2 spheres heatednitrogen atmosphereAzot atmosferinde isitdmis mikron-alti monodisperse SiO2 kiirelerin nitriirlenmedavranisiV. ATAKAN, A.C. TA§ 435

Kompozitler / Composites

Cyclic fatigue behaviour of saffil alumina fibre-reinforced mullite ceramicmatrix composites at ambient and elevated temperaturesSaffil alumina fiberleri He takviye edilmi$ mullit matriksli kompozitlerin oda ve yiikseksicakhklardaki vorulma davrani$iC. KAYA, F. KAYA, H. MORI, T. KISHI, C.B. PONTON 437

Effect of deoxidation on the microstructure and ft—»p-SiC transformationin SiC-Si3N4 compositesSiC-SijN4 kompoz.itlerinde a—*fiSiC faz donusiimu ve deoksidasyonunmikroyapiva etkisiS. TURAN, K.M. KNOWLES 445

The influence of AI2O3 on mechanical properties of composites with zirconia matrixAlumina ilavesinin zirkonva matriskli kompozitlerin mekanik ozelliklerine etkisiE. VOLCEANOV, S. MOTOC, A. APOSTOL, R. NEAGU, A. VOLCEANOV 451

Effect of sintering atmosphere on ZTA composites characteristicsSinterleme atmosferinin ZTA kompozitlerinin ozelliklerine etkisiS. MOTOC, E. VOLCEANOV, R. NEAGU, A. APOSTOL 457

Boron carbide-aluminium composites produced by pressurelessmelt infiltrationBasincsiz sivi metal infiltrasyonu ile bor karbiir - aluminvum kompozitlerinin iiretimiG. ARSLAN, F. KARA, S. TURAN 463

Laminated alumina-aluminium compositesAliimina-aluminvum lamine kompozitlerF. KARA, S. TURAN, R. STEVENS, K.M. KNOWLES, E. PUTUN, J.A. LITTLE.469

Silisyum karburpar9acik takviyeli aluminyum-magnezyum ala§im matrikslikompozitlerin a§inma karakteristiklerinin belirlenmesiDetermination of wear properties of silicon carbide paniculate reinforced aluminium-magnesium alloy matrix compositesR. GURLER, I. MUTLU, H.CICEK, L CELtKYUREK 475

The effect of different factors on crack growth behaviour of SiC(P)/ Al-2124single core bulk functionally graded materialsSiCn IAI-212J fonksiyonel degi$ken malzemelerin catlak biiyiime davranqlannadegisikfaktorlerin etkisiH. UZUN 481

Interphase boundaries between hexagonal boron nitride and silicon carbide grainsHegzagonal bor nitriir ve silisyum karbiir taneleri arasindaki faz sinirlariS. TURAN, K.M. KNOWLES 489

AI2Q3/AI co-continuous composites synthesised by reacting kaolinite and aluminiumKaolinit ve aluminvumun reaksivonu ile elde edilen siirekli AI2O3/AI kompozitlerA.E. UZGUR, F. KARA, S. TURAN 497

Seramik tane sinirlannin lslatma davrani§iWetting behaviour of interfaces in ceramicsS. TURAN 499

Zirkonya ilavesinin alfa aluminanin sinterleme davrani§ina ve mikroyapisina etkisiEffect of zirconia addition on the sintering behaviour and microstructure of (^aluminaF. KARA, K. ALPTEKIN 507

Elektroseramikler / Electroceramics

Microscopy and microanalysis of electronic ceramicsElektronik seramiklerin mikroskop incelemesi ve mikroanaliziK.M. KNOWLES (CAGRILI KONU§MACI-INVITED SPEAKER) 513

Chemical synthesis of pure and Gd-doped CaZrO3 powders used for gas-sensingapplicationsGaz algilama uygulamalannda kullanilan Gd-katkdi CaZrOs tozlarinin kimyasal senteziI.E. GONENLI, A.C. TA§ ' 525

Chemical synthesis of (Nio.sZno.s) Fe2O4 powders(Nio 5ZnQ 5) Fe2Q4 tozlarinin kimyasal senteziI.E.' GONENLI, A.C. TA§.' 531

Oxalate-hydrazinate precursor for low temperature synthesis of Mn-Zn ferriteMn-Znferritlerinin diisiik sicakhk sentezi icin ogzalat-hidrazin ba$langig malzemesiT.G. MARUNTELU, E. CHIRTOP, M. TILICA, R.M. ION,C. BERCU, N. STANICA 533

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Solid phase reactions involved in the formation of compounds from the ternarypseudosystemPbO.TiO2-PbO.SnO2-PbO.ZrO2PbO.TiO2 - PbO.SnO2 - PbO.ZrO2 Uclu sistemindeki bilesimlerim olusumundameyadna gelen kati hal reaksiyonlariR.M. PITICESCU, M. PREDA, H.H. REHNER, V. BADILITA 539

ZnO sinterlenmesinde PbO katkisinm etkisiInfluence of PbO addition on sintering of ZnOA. AYGUN, H. ERKALFA, T.O. OZKAN 545

ZnO-Sb2Q3-MnO seramik sisteminin elektriksel ozelliklerine sinterlemenin etkisiInfluence of sintering on the electrical properties ofZnO-Sb2OyMnO ceramic svsvtemH.O. TOPLAN, T.O. OZKAN ; .'..." 551

Characterisation of vanadium-doped zinc oxide varistorsVanadyum katkili cinko oksit varistorlerinin karakterizasyonuH-H. HNG, K.M. KNOWLES 557

Fabrication of acoustic transducer using lead niobate for high-temperaturegas flow meterYu'ksek sicakhk gas aki$kanligi b'lceri icin kur$un niobvum kullandarak akustiktransducer iiretimiJ. SOEJIMA, S. HOSHIKAWA, Y. KOBORI, K. NAGATA 565

Size dependent properties of hollow sphere transducerslei bo§ ku'reli transdiiserlerde hoyutun ozelliklere etkisiS. ALKOY, A.C. HLADKY, J.K. COCHRAN, R.E. NEWNHAM 573

Surface characteristics on photostrictive behavior of PLZT ceramicsPLZTseramiklerde vu'zey kosullarinin "photostriktive" isil-genlesmeyeetkisiA. DOGAN, P. POOSANAAS, K. UCHINO 575

Halka seramikli cymbal transdUserlerinin bilgisayar yardimi ile tasanmiDesign ojcymbal ceramic transducers by computer simulationA. DOGAN, A.C. HLADKY, R.E. NEWNHAM 581

Properties and reliability of piezoelectric ceramic transformersPiez.oelektrik seramik transformatorlerin ozellikleri vegiivenilirligiK. NAGATA, J. THONGRUENG, K. KATO 589

The role of polarization mechanisms in electrostrictive effects for lowpermittivity glasses and ceramicsElektrostriktif etkilerdeki polarizasyon mekanizmalannin du$uk permit iviteyesahip cam ve seramiklerdeki roliiV. SUNDAR, R. YIMNIRUN, R.E. NEWNHAM 597

Bazi seramik hammaddelerin dielektrik ozelliklerinin incelenmesiInvestigation of dielectric properties of some ceramic raw materialsA. KIRAK, S. GULER, H. YILMAZ, C. GULER 603

Temperature dependence of dielectric properties and field induced strain in lowfiring PZN-PFW-PFN and PN-PMW-PT relaxorferroelectricsDusuk pisirme sicaklikh PLN-PFW-PFN ve PN-PMN-PT relaksor ferroelektrikmalzemelerde, sicakhgin dielektrik ve elektrik alani etkili genle^meye etkileriV. SUNDAR, C. PEZANOWSKl, R. NATARAJAN, J.P. DOUGHERTY,R.E. NEWNHAM 605

Ceramics in MgO-AbO3 binary system, with high resistivity working temperaturesYiiksek direncli caligma sicakhgina sahip MgO-A^O^ seramikleriD. SERBAN, N. NEACSU, C. OPREA 607

Metal-ceramic micropackages for microwave applicationMikrodalga uygulamalan icin metal-seramik mikro paketlerC. ANTON,'M. MUNTEAN, G. SIMION, V. BURGHELEA 613

Preparation of lead zirconate titanate (Pb(Zro.52Tio.48)03) byhomogeneous precipitation and calcinationKursun-zirkon-titanat (Pb(Zroj2 Tio,48X>3 malzemesinin homojen coktiirme vekalsinasyon yoluvla hazirlanmasiE.E. OREN, A.C. TA§ 619Hydrothermal synthesis of pure and Dy: BaTiO3 powders at 90°Cand their sintering behaviourSafve Dy: BaTiO'j tozlarinin hidrotermatsentezi vesinterleme davraniijiE.E. OREN, A.C. TA§ 627

Bioseramikler / Bioceramics

Bio uyumlu mika cam seramiklerinin di§ uygulamalan i9in UretimiProduction ofbiocompatible mica glass ceramics for dental applicationsH. DER, A. OZTURK 635

Production of macroporous calcium hydroxyapatite bioceramic partsMakroporoziteli kalsiyum hidroksiapatit bioseramik parcalarin uretimiN.O. ENGIN, A.C. TA§ 643

Chemical synthesis of biomimetic calcium hydroxyapatite powders at 37 °Cand pH of 7.4 in synthetic body fluidsBiomimik kalsiyumhidroksiapatit tozlarinin 37 °C ve pH 7.4'te sentetik viicut sivisiicinde kimyasal senteziA.C. TA§ 649

Production of the self-setting pastes of calcium phosphate bioceramicsKendi kendine sertleyen kalsiyum fosfat bioseramiklerin uretimiA. §EHiRLIOGLU, A.C. TA§ 657

Dip-coating of calcium hydroxyapatite bioceramics on titanium or steel stripsKalsiyumhidroksiapatit bioseramiklerinin titanyum veya celik geritler iizerinedaldirma vqluvla kaplanmasiB. MAVi§, A.C. TA§ 659

In-situ coating of calcium hydroxyapatite on Ti-6A1-4V or316 L stainlesssteel surfaces at 37°C in synthetic body fluidsKalsiyumhidroksiapatit bioseramiklerinin Ti-6Al-4V veva 316 Lpaslanmaz. celikiizerine 37 °C'de sentetik viicut sivisi ile in-situ kaplanmasiA.C. TA§ 661

The characterization of D-gun sprayed hidroxyapatite coating afterheat treament and agingD-tabanca ile spreylenmis hidroksiapatitin isil islem ve yaslandirma sonrasikarakterizasyonuZ.E. ERKMEN, I.G. TURNER 669

Calcium phosphate-alumina biocomposite ceramicsKalsiyum fosfat -alumina biokompozit seramiklerB. VIRGINIA, T. CHRISTU, L. VIORICA, I. DRAGOS, M. ALINA 677

Mullite-leucite dental porcelainMiillit-leucitedifporselenleriB. VIRGINIA, S. NELA, M. AURELIA 683

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Manufacture of thin plaques of calcium hydroxyapatite bioceramics bytape-castings and die-pressingKalsiyumhidroksiapatit bioseramik ince hamurunun §erit dokiim ve kuru preslemeile uretimiO. YIGITERHAN, A.C. TA§ 689

Kaplamalar / Coatings

Termal sprey kaplama teknikleriThermal spray coating techniquesF. U S T E L / N . TOPLAN, F. YILMAZ 697

Plazma sprey yontemi ile Uretilen fonsiyonel degi§ken kaplamalann incelenmesiAnalysis of the functionally graded coatings produced by plasma sprayA.§." DEMIRKIRAN, E. AVCI '. 705

Iyon- ark katmanlama yontemi ile kaplanmi§ cam §i§e kahplannda ergiyikcam-kalip arayUzey ilis,kisiMolten glass-mould interface interactions in glass bottle moulds coatedby ion-arc deposition§'. KARAGOZ, H. ALANYALI 713

J-79 jet motoru egzoz flaplannda kullanilan plazma sprey Z1O2 termal bariyerkaplamasina silisyum karbUr ilavesinin kaplama mekanik ozellikleri uzerine etkisiEffect ofSiC additions on the mechanical properties of plasma sprayedZn02 thermal barrier coating in J- 79 jet engine exhaustA. ALPAY, N.S. CANARSLAN 721

Plazma kaplamada porositeye etki eden faktorlerin Taguchi yontemi ilebelirlenmesi ve kaplama ozelliklerinin incelenmesiDetermination of factors influencing porosity in plasma spray coatingsby Taguchi method and investigation of coating propertiesR. GURLER, D. PARACIK, A.S. AKAGUN, M. ALPER 727

Borlama isjeminin boyut degi§imine ve pUruzlulUge etkisiEffect of bonding on dimensional change and surface roughnessY. SOYDAN. V. CELIK 733

Mechanical properties of borided cold work steelBorlanmi$ soguk i§ celiginin mekanik ozellikleri§. §EN, I. OZBEK, U. §EN, C. BINDAL 739

Mechanical properties of borides formed on the surface of AISI 1040 steelA/5/1040 geliginin yiizeyinde olusturulmus boriirlerin mekanik ozellikleriC. BINDAL, M. USTA, A.H. UCI§IK 745

Borlama ile yuzeyi sertle§tirilen AISI W4 takim 9eliginin bazi mekanik ozellikleriSome mechanical properties of AISI W4 tool steel surface hardened by bondingL OZBEK, C. BINDAL .' 753

Digerleri / Others

Modelling of microstructure to generate designer ceramicsDizayn edilmq seramikleri U'retmek igin mikrovapi modellemesiR. STEVENS (CAGRILI KONU§MACI-INVITED SPEAKER) 761

The degradation of engineering ceramicsMuhendislik seramiklerinin korozvonuJ.A. LITTLE (CAGRILI KONUS.MACI-INVITED SPEAKER) 763

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Oxynitride glass ceramicsOksinitrtir cam seramikleriS. HAMPSHIRE (CAGRILI KONUS. MACI-INVITED SPEAKER),H. LEMECIER, Y. MENKE, V. PELTIER-BARON, R. RAMESHE 771

Kapasitor-de§arj teknigi ile oksit ve oksit olmayan seramiklerin kaynaklanmasiCapacitor discharge joining of oxide and non-oxide ceramicsS. TURAN ; 783

Surface/interface engineering and adhesion metal-silicate glass systemMetal-silikat cam sisteminde yuzev-araviizev diz.avm ve adhezvonM. LUPESCU, M. ZAHARESCU, D. RADU, A. VOLCEANOV 791

SiC-MoSi2-Al2O3 eletriksel lsitmaeiemanlannin yanma sentezi yontemiyle UretimiCombustion synthesis of SiC-MoSi2~Al2Oi heating elementsN.S. CANARSLAN '. 797

W-35Ag elektrik kontak malzemesinin toz metalurjisi Uretim sUrecininincelenmesi ve mikroyapisal karakterizasyonuProduction ofW-35Ag electrical contact material by powder metallurgy andmicrostructuralcharacterisationZ. ASLANOGLU, F. FINDIK, M.L. OVECOGLU, Y. KARAKAS. 803

Apatite and other calcium phosphate based bioceramics and structural studiesApatit ve diger kalsiyum fosfat baz.li bioseramikler iizerine yapisal gali^malarM. KIZILYALLl' Y. SARGIN, C. TELLI 809

Seramik malzemelerin karakterizasyonunda spektrometre tekniklerinin kullanimiSpectrometric techniques for characterising ceramic materialsS. TURAN, F. KARA 817

Titre§imli dbnUm a9isi b^erlerin tasanmi ve uretilmesiDesigning and production of the vibrating gyrosensorA. DOGAN 819

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