Silver powder
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United States of America Patent
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Jun 19, 2018
Issued Date -
Nov 23, 2017
app pub date -
Mar 10, 2017
filing date -
May 17, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A silver powder includes a large number of particles. The particles include polyhedral particles 2. The ratio P1 of the number of the polyhedral particles 2 to the total number of the particles is equal to or greater than 80%. Each polyhedral particle 2 has a body containing silver as a main component, and a coating layer covering a surface of the body and containing organic matter as a main component. Each polyhedral particle 2 has an aspect ratio of equal to or less than 3.0. The content P2 of the organic matter in the silver powder is preferably equal to or less than 0.5% by weight. The silver powder preferably has a median diameter D50 of equal to or less than 0.5 μm. The silver powder preferably has a tap density TD of equal to or greater than 5.0 g/cm3.
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