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摘要：
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采用化学沉淀法制备了纳米级 3Y TZP粉体 ,制得了粒径尺寸为 8～ 16nm ,少团聚的粉体。热压烧结得到相对密度为 97% ,晶粒尺寸为 10 0nm～ 2 5 0nm的 3Y TZP陶瓷片。通过研究成形温度对成形性能的影响 ,最终采用超塑成形工艺制出了半球形陶瓷零件
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Y\|TZP nano powders were synthesized by chemical precipitation Then, weakly agglomerated powders of 3Y\|TZP with grain size of 8～16nm was obtained After hot pressing, ceramic discs which relative density is 97% and grain size is 100nm～250nm were obtained The influence of forming temperature on the formability of nano ceramic discs has been studied Hemispherical caps of nano ceramic were made by superplastic forming processing finally
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作者简介：
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参考文献：
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1 Wakai,SSakaguchi,YMatsunoSuperplasticityofYttriaStabilizedTetragonalZrO
2PolycrystalsAdvCeramMater,1986(1):259～263
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3 THermansson,KPDLaterl o f,GLDunlopSuperplasticDef ormatio nofY-TZPZirconiaSuperplasticityandSuperplasticForming,1988:631～635
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5 KimB ,HiragaKSuperplasticityinaluminaenhancedbyc o-dispersionof10%zirconiaand10%spinelparticlesActaMaterialia,2001,49(5):887895
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