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High-strength and high-toughness nano zirconia ceramic material as well as preparation method and application thereof
The invention relates to the technical field of ceramic material preparation, in particular to a high-strength and high-toughness nano zirconia ceramic material as well as a preparation method and application thereof. The preparation method of the nano zirconia ceramic material provided by the invention comprises the following steps: taking zirconia powder particles with amorphous oxide films on the surfaces as raw materials, and carrying out molding and sintering treatment. According to the invention, the functional gradient film layer is constructed on the surfaces of zirconia powder particles by using an ALD technology for the first time, and the obtained film is recrystallized in the subsequent forming and sintering process to form oxide crystal grains which are distributed in zirconia crystal grains and grain boundaries and have nano and submicron sizes, so that the aims of strengthening and toughening are fulfilled; meanwhile, the obtained material has a nanophase structure, and the biological activity of the material is remarkably improved.
本发明涉及陶瓷材料制备技术领域，具体涉及一种高强度高韧性纳米氧化锆陶瓷材料及其制备方法与应用。本发明提供的纳米氧化锆陶瓷材料的制备方法，包括：以表面具有无定型氧化物薄膜的氧化锆粉末颗粒为原料，进行成型和烧结处理。本发明首次提出利用ALD技术在氧化锆粉末颗粒表面构建功能化梯度膜层，所得薄膜在后续成型和烧结过程中再结晶，形成分布于氧化锆晶粒内和晶界的具有纳米和亚微米大小的氧化物晶粒，从而实现了增强增韧的目的；同时所得材料具有纳米相结构，其生物活性得到显著提升。
High-strength and high-toughness nano zirconia ceramic material as well as preparation method and application thereof
The invention relates to the technical field of ceramic material preparation, in particular to a high-strength and high-toughness nano zirconia ceramic material as well as a preparation method and application thereof. The preparation method of the nano zirconia ceramic material provided by the invention comprises the following steps: taking zirconia powder particles with amorphous oxide films on the surfaces as raw materials, and carrying out molding and sintering treatment. According to the invention, the functional gradient film layer is constructed on the surfaces of zirconia powder particles by using an ALD technology for the first time, and the obtained film is recrystallized in the subsequent forming and sintering process to form oxide crystal grains which are distributed in zirconia crystal grains and grain boundaries and have nano and submicron sizes, so that the aims of strengthening and toughening are fulfilled; meanwhile, the obtained material has a nanophase structure, and the biological activity of the material is remarkably improved.
本发明涉及陶瓷材料制备技术领域，具体涉及一种高强度高韧性纳米氧化锆陶瓷材料及其制备方法与应用。本发明提供的纳米氧化锆陶瓷材料的制备方法，包括：以表面具有无定型氧化物薄膜的氧化锆粉末颗粒为原料，进行成型和烧结处理。本发明首次提出利用ALD技术在氧化锆粉末颗粒表面构建功能化梯度膜层，所得薄膜在后续成型和烧结过程中再结晶，形成分布于氧化锆晶粒内和晶界的具有纳米和亚微米大小的氧化物晶粒，从而实现了增强增韧的目的；同时所得材料具有纳米相结构，其生物活性得到显著提升。
High-strength and high-toughness nano zirconia ceramic material as well as preparation method and application thereof
一种高强度高韧性纳米氧化锆陶瓷材料及其制备方法与应用
HAN JIANMIN (author) / GUO XIANWEI (author) / LI NAN (author) / GUO CHUANBIN (author)
2024-01-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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