发明授权
- 专利标题： Negative coefficient of thermal expansion particles and method of forming the same
- 专利标题（中）： 热膨胀颗粒的负系数及其形成方法
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申请号： US10702280申请日： 2003-11-06
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公开(公告)号： US07579069B2公开(公告)日： 2009-08-25
- 发明人: Gareth Geoffrey Hougham , Xiao Hu Liu , S. Jay Chey , James Patrick Doyle , Joseph Zinter, Jr. , Michael J. Rooks , Brian Richard Sundlof , Jon Alfred Casey
- 申请人： Gareth Geoffrey Hougham , Xiao Hu Liu , S. Jay Chey , James Patrick Doyle , Joseph Zinter, Jr. , Michael J. Rooks , Brian Richard Sundlof , Jon Alfred Casey
- 申请人地址： US NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： US NY Armonk
- 代理机构： F. Chau & Associates, LLC
- 主分类号： B32B15/02
- IPC分类号： B32B15/02
摘要：
A negative coefficient of thermal expansion particle includes a first bilayer having a first bilayer inner layer and a first bilayer outer layer, and a second bilayer having a second bilayer inner layer and a second bilayer outer layer. The first and second bilayers are joined together along perimeters of the first and second bilayer outer layers and first and second bilayer inner layers, respectively. The first bilayer inner layer and the second bilayer inner layer are made of a first material and the first bilayer outer layer and the second bilayer outer layer are made of a second material. The first material has a greater coefficient of thermal expansion than that of the second material.
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