Copper-ceramic joint body, brazing member and method of manufacturing copper-ceramic joint body
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United States of America Patent
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Sep 17, 2024
Grant Date -
Sep 28, 2023
app pub date -
Mar 23, 2023
filing date -
Mar 24, 2022
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Abstract
A copper-ceramic joint body having high joint strength is provided. The copper-ceramic joint body includes: a copper member made of Cu or Cu alloy; a ceramic member joined to the copper member and made of nitride of Si or Al; and a joint layer formed on joint surfaces of the copper member and the ceramic member, and containing Cu and Mg and further containing at least one type of active metal elements selected from a group of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Ca, Y, Ce, La, Sm, Yb, Nd, Gd and Er, and shear strength of the joint layer is equal to or higher than 10 MPa.
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