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公开(公告)号:US20230271158A1
公开(公告)日:2023-08-31
申请号:US18006993
申请日:2021-07-26
CPC分类号: B01J20/226 , B01J20/08 , B01J20/3007 , B01J20/3042 , B01J20/3078 , B01J20/28026
摘要: A product based on a metal-organic framework (MOF) and the method for producing same, the product containing particles bound by a binder, the binder including boehmite, the particles being essentially MOF particles and, optionally, particles of a ceramic material other than boehmite.
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公开(公告)号:US20240208871A1
公开(公告)日:2024-06-27
申请号:US18557132
申请日:2022-04-29
IPC分类号: C04B35/575
CPC分类号: C04B35/575 , C04B2235/3834 , C04B2235/401 , C04B2235/402 , C04B2235/405 , C04B2235/721 , C04B2235/728 , C04B2235/785 , C04B2235/786 , C04B2235/85
摘要: A polycrystalline sintered ceramic material of very low electrical resistivity includes by mass more than 95% silicon carbide (SiC), less than 1.5% silicon in another form than SiC, less than 2.5% carbon in another form than SiC, less than 1% oxygen (O), less than 0.5% aluminum (Al), less than 0.5% of the elements Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, less than 0.5% alkali elements, less than 0.5% alkaline earth, between 0.1 and 1.5% nitrogen (N), the other elements forming the complement to 100%, wherein the grains of the above material have a median equivalent diameter of between 0.5 and 5 micrometers, the mass ratio of SiC alpha (α)/SiC beta (β) is less than 0.1, and the total porosity represents less than 15% by volume of the material.
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公开(公告)号:US20240217883A1
公开(公告)日:2024-07-04
申请号:US18557141
申请日:2022-04-29
IPC分类号: C04B35/575 , C04B35/63
CPC分类号: C04B35/575 , C04B35/6303 , C04B2235/3821 , C04B2235/3834 , C04B2235/422 , C04B2235/5436 , C04B2235/5445 , C04B2235/656 , C04B2235/6584 , C04B2235/666 , C04B2235/723 , C04B2235/725 , C04B2235/786
摘要: A polycrystalline silicon carbide sintered material includes silicon carbide grains having a median equivalent diameter of between 1 and 10 microns, the material having a total porosity of less than 2% by volume of the material, and a silicon carbide mass content of at least 99%, except for the free carbon, wherein in the material the mass ratio of the content of SiC having a beta-type crystallographic form to the content of SiC having an alpha-type crystallographic form is less than 2.
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