- 专利标题: METAL CONTACT OF A RESIDENTIAL CIRCUIT BREAKER INCLUDING ORDERED CERAMIC MICROPARTICLES
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申请号: US17363126申请日: 2021-06-30
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公开(公告)号: US20230005673A1公开(公告)日: 2023-01-05
- 发明人: Roberto Carlos Hernandez Maya , Luis Miguel Franco Caballero , Francisco Franco Caballero
- 申请人: Siemens Industry, Inc.
- 申请人地址: US GA Alpharetta
- 专利权人: Siemens Industry, Inc.
- 当前专利权人: Siemens Industry, Inc.
- 当前专利权人地址: US GA Alpharetta
- 主分类号: H01H1/025
- IPC分类号: H01H1/025 ; C22C29/08 ; C22C29/00 ; C22C9/00
摘要:
A metal contact of a residential circuit breaker with ordered ceramic microparticles is provided. The metal contact comprises an electrical contact material comprising a metal alloy and ceramic particles to form a metal matrix composite material. Both materials the metal alloy and the ceramic particles are present together as a metal compound but without forming an alloy. The metal compound is a matrix and reinforcement being the ceramic particles such that first the ceramic particles has a sintering step to get a homogeneous preform for the metal compound being porous with a controlled size obtained by pressing a particle size of about few micrometers of the ceramic particles and then a liquid metal infiltration step to provide a homogenous distribution of the metal alloy and the ceramic particles in a three-dimensional open porous arrangement and the homogenous distribution results in ordered microstructures.
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