ACTIVE METAL BRAZING PASTE COMPOSITION, BRAZING PASTE, AND METHOD FOR BRAZING CERAMICS AND METALS
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United States of America Patent
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Issued Date -
Apr 18, 2024
app pub date -
Dec 27, 2023
filing date -
Sep 29, 2021
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Abstract
Disclosed are an active metal brazing paste composition, a brazing paste and a method for brazing ceramics and metals. The composition includes a binder and metal powder. The metal powder includes active metal brazing powder and brazing-aid metal powder. The brazing-aid metal powder contains copper powder and/or copper-silver alloy powder. The active metal brazing powder is alloy powder containing copper, silver, and an active metal. With the total weight of the metal powder as a reference, the content of the active metal is 1.5 wt % or more, the content of silver is 40 wt % to 90 wt %, and the content of oxygen is 0.5 wt % or less.
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