Invention Grant
US6048577A Nano-sized alpha alumina particles having a silica coating thereon
失效
具有二氧化硅涂层的纳米尺寸的α氧化铝颗粒
- Patent Title: Nano-sized alpha alumina particles having a silica coating thereon
- Patent Title (中): 具有二氧化硅涂层的纳米尺寸的α氧化铝颗粒
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Application No.: US191737Application Date: 1994-02-04
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Publication No.: US6048577APublication Date: 2000-04-11
- Inventor: Ajay K. Garg
- Applicant: Ajay K. Garg
- Applicant Address: MA Worcester
- Assignee: Norton Company
- Current Assignee: Norton Company
- Current Assignee Address: MA Worcester
- Main IPC: C01F7/02
- IPC: C01F7/02 ; B24B37/00 ; C01F7/44 ; C09K3/14 ; B05D7/00 ; B32B9/00 ; C09G1/00
Abstract:
Nano-sized powders of alpha alumina can be obtained from a boehmite gel doped with a barrier-forming material such as silica that is then dried, fired and comminuted to powder form.
Public/Granted literature
- US4845534A Field effect semiconductor device Public/Granted day:1989-07-04
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