发明授权
US3985841A Method and means for producing solid evacuated microspheres of hydrogen
失效
用于生产固体真空的氢气微球的方法和装置
- 专利标题： Method and means for producing solid evacuated microspheres of hydrogen
- 专利标题（中）： 用于生产固体真空的氢气微球的方法和装置
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申请号： US629244申请日： 1975-11-06
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公开(公告)号： US3985841A公开(公告)日： 1976-10-12
- 发明人: Robert J. Turnbull , Christopher A. Foster , Charles D. Hendricks
- 申请人： Robert J. Turnbull , Christopher A. Foster , Charles D. Hendricks
- 申请人地址： DC Washington
- 专利权人： The United States of America as represented by the United States Energy Research and Development Administration
- 当前专利权人： The United States of America as represented by the United States Energy Research and Development Administration
- 当前专利权人地址： DC Washington
- 主分类号： C01B3/00
- IPC分类号： C01B3/00 ; F25J1/00 ; C01B4/00
摘要：
A method is provided for producing solid, evacuated microspheres comprised of hydrogen. The spheres are produced by forming a jet of liquid hydrogen and exciting mechanical waves on the jet of appropriate frequency so that the jet breaks up into drops with a bubble formed in each drop by cavitation. The drops are exposed to a pressure less than the vapor pressure of the liquid hydrogen so that the bubble which is formed within each drop expands. The drops which contain bubbles are exposed to an environment having a pressure just below the triple point of liquid hydrogen and they thereby freeze giving solid, evacuated spheres of hydrogen.
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