发明名称 |
Silver powder and method for producing same |
摘要 |
After a reducing agent is added to a water reaction system containing silver ions to deposit silver particles by reduction, the silver particles are dried to obtain a silver powder which is heat-treated at a temperature of higher than 100° C. and lower than 400° C. The silver powder thus heat-treated has a maximum coefficient of thermal expansion of not greater than 1.5% at a temperature of 50° C. to 800° C., and has no heating peak when the silver powder is heated from 50° C. to 800° C. The silver powder has an ignition loss of not greater than 1.0% when the silver powder is ignited until the weight of the silver powder is constant at 800° C. The silver powder has a tap density of not less than 2 g/cm3 and a BET specific surface area of not greater than 5 m2/g. |
申请公布号 |
US8282702(B2) |
申请公布日期 |
2012.10.09 |
申请号 |
US20050285140 |
申请日期 |
2005.11.21 |
申请人 |
FUJINO TAKATOSHI;OGI KOZO;DOWA MINING CO., LTD. |
发明人 |
FUJINO TAKATOSHI;OGI KOZO |
分类号 |
B22F9/24 |
主分类号 |
B22F9/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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