Invention Grant
- Patent Title: Method of analyzing particle size distribution of particles in metal material
- Patent Title (中): 分析金属材料颗粒粒度分布的方法
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Application No.: US12934031Application Date: 2009-04-23
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Publication No.: US08384897B2Publication Date: 2013-02-26
- Inventor: Kazumi Mizukami , Kenichi Murakami , Satoshi Arai , Nobusato Morishige , Yuji Kubo , Hotaka Honma , Eiichi Nanba
- Applicant: Kazumi Mizukami , Kenichi Murakami , Satoshi Arai , Nobusato Morishige , Yuji Kubo , Hotaka Honma , Eiichi Nanba
- Applicant Address: JP Tokyo
- Assignee: Nippon Steel & Sumitomo Metal Corporation
- Current Assignee: Nippon Steel & Sumitomo Metal Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2008-114801 20080425
- International Application: PCT/JP2009/058072 WO 20090423
- International Announcement: WO2009/131175 WO 20091029
- Main IPC: G01N15/02
- IPC: G01N15/02
Abstract:
A method according to the present invention has: isolating, by extraction, particles contained in a metal material to be analyzed in a solution using a particle isolator; dispersing the particles isolated by extraction into a solvent to prepare a dispersion, and fractionating the dispersion into a plurality of particle dispersions based on particle sizes, using a field flow fractionator; and irradiating laser light on each of the particle dispersions separated based on predetermined particle sizes, to thereby measure absolute values of the particle size based on angular dependence of reflection intensity, and also to thereby measure the number density based on magnitude of reflection intensity.
Public/Granted literature
- US20110019187A1 METHOD OF ANALYZING PARTICLE SIZE DISTRIBUTION OF PARTICLES IN METAL MATERIAL Public/Granted day:2011-01-27
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