Invention Grant
- Patent Title: Metal contact of a residential circuit breaker including ordered ceramic microparticles
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Application No.: US17363126Application Date: 2021-06-30
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Publication No.: US11798751B2Publication Date: 2023-10-24
- Inventor: Roberto Carlos Hernandez Maya , Luis Miguel Franco Caballero , Francisco Franco Caballero
- Applicant: Siemens Industry, Inc.
- Applicant Address: US GA Alpharetta
- Assignee: Siemens Industry, Inc.
- Current Assignee: Siemens Industry, Inc.
- Current Assignee Address: US GA Alpharetta
- Main IPC: H01H1/025
- IPC: H01H1/025 ; C22C9/00 ; C22C29/00 ; C22C29/08

Abstract:
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.
Public/Granted literature
- US20230005673A1 METAL CONTACT OF A RESIDENTIAL CIRCUIT BREAKER INCLUDING ORDERED CERAMIC MICROPARTICLES Public/Granted day:2023-01-05
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