发明授权
- 专利标题: Fracture toughness of ceramics
- 专利标题(中): 陶瓷的断裂韧性
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申请号: US12962533申请日: 2010-12-07
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公开(公告)号: US08992820B1公开(公告)日: 2015-03-31
- 发明人: Qinghua Yin , Xiwang Qi , Maximilian A. Biberger , David Leamon
- 申请人: Qinghua Yin , Xiwang Qi , Maximilian A. Biberger , David Leamon
- 申请人地址: US AZ Tempe
- 专利权人: SDCmaterials, Inc.
- 当前专利权人: SDCmaterials, Inc.
- 当前专利权人地址: US AZ Tempe
- 代理机构: Morrison & Foerster LLP
- 主分类号: B28B3/02
- IPC分类号: B28B3/02
摘要:
A method of making ceramics is provided. The method comprises preparing a dispersion of a nano-material. A slurry of a ceramic matrix material is prepared. The nano-dispersion is mixed with the matrix slurry to form a nano-dispersion/slurry mixture. The nano-dispersion/slurry mixture is dried. The nano-dispersion/slurry mixture is pressed into a final manufacture comprising a granular structure including the nano-material bonded within and uniformly distributed throughout the granular structure. The manufacture comprises an increased fracture toughness compared with a conventional manufacture produced without bonding the nano-material within the granular structure. The nano-material has a size on the order of tens of nanometers. The matrix material has a size on the order of several micrometers. Five percent of the nano-dispersion/slurry mixture comprises the nano-material dispersion. Sintering is performed on the final form using a sintering process following the pressing step. The sintering process includes a hot isostatic pressing process.