CAS: 14985-19-4; Thulium Nitrate

专利信息

专利号:US-7935325-B2
优先权日:2006-01-31
标 题:Rare earth-activated aluminum nitride powders and method of making
发明人：HAN BING; TAO JONATHAN H; RAUKAS MADIS; KLINEDINST KEITH A; TALBOT JAN B; MISHRA KAILASH A
权利人:OSRAM SYLVANIA INC; UNIV CALIFORNIA
摘要:Rare earth-activated aluminum nitride powders are made using a solution-based approach to form a mixed hydroxide of aluminum and a rare earth metal, the mixed hydroxide is then converted into an ammonium metal fluoride, preferably a rare earth-substituted ammonium aluminum hexafluoride ((NH 4 ) 3 Al 1-x RE x F 6 ), and finally the rare earth-activated aluminum nitride is formed by ammonolysis of the ammonium metal fluoride at a high temperature. The use of a fluoride precursor in this process avoids sources of oxygen during the final ammonolysis step which is a major source of defects in the powder synthesis of nitrides. Also, because the aluminum nitride is formed from a mixed hydroxide co-precipitate, the distribution of the dopants in the powder is substantially homogeneous in each particle.

专利号:CN-108793980-A
优先权日:2018-07-10
标题 :A method for preparing alumina-based solid solution ceramic powder by combustion synthesis of water mist

专利号:CN-105112051-A
优先权日:2015-07-16
标 题:Synthesis of ytterbium-thulium-doped fluorides for upconversion of white light

专利号:CN-103112820-A
优先权日:2013-01-31
标 题:One-step synthesis of hybrid structures of nanoparticles and nanorods

专利号:KR-20000005095-A
优先权日:1996-03-29
标 题 :Synthesis of Solid Powdery Rare Earth Carboxylate by Precipitation

专利号:CN-115353151-A
优先权日:2022-08-24
标题:Synthesis method of rare earth cobalt-based oxide electronic phase change material