发明授权
US5166004A Fiber and whisker reinforced composites and method for making the same
失效
纤维和晶须增强复合材料及其制造方法
- 专利标题: Fiber and whisker reinforced composites and method for making the same
- 专利标题(中): 纤维和晶须增强复合材料及其制造方法
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申请号: US726981申请日: 1991-07-08
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公开(公告)号: US5166004A公开(公告)日: 1992-11-24
- 发明人: Animesh Bose , James Lankford , Richard Page , Cheryl Blanchard
- 申请人: Animesh Bose , James Lankford , Richard Page , Cheryl Blanchard
- 申请人地址: TX San Antonio
- 专利权人: Southwest Research Institute
- 当前专利权人: Southwest Research Institute
- 当前专利权人地址: TX San Antonio
- 主分类号: B22F7/04
- IPC分类号: B22F7/04 ; C04B35/80 ; C22C47/14 ; C22C47/20
摘要:
A composite material (20) comprises a matrix layer (21) having a plurality of interspersed reinforcing whiskers (23) and a plurality of continuous reinforcing fibers (25) embedded within the matrix layer (21). The preferred embodiment includes a matrix layer (21) which may be a ceramic, intermetallic or metallic material having interspersed reinforcing whiskers (23) upon which a second layer of the matrix (24) having embedded continuous reinforcing fibers (25) is placed, and a third layer (22) of the matrix material having the interspersed reinforcing whiskers (23) on the second layer (24). The composite exhibits improved fracture toughness due to the crack deflection ability of whiskers (23) and crack bridging and fiber pull out due to continuous fibers (25) and minimizes creep associated with known ceramic and intermetallic composites.
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