9-9 中文名: 钐粉 英文名: Samarium 中文别名: 钐粉 英文别名: Samarium 物化性质 性质: 浅灰色金属,硬度似铁,在空气中稳定,但很快变黑。和水反应。 沸点:1778℃ 熔点:
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品简介:中文名称:氧化钐中文别名:三氧化二钐分散体;高密度氧化钐;三氧化二钐;英文名称:Samarium 发货地址: 江西-赣州 和我联系联系方式 去店铺看看 公司名称:赣州友胜矿产品有限公司[已核实]本供应商相关产品
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samarium chloride 氯化钐 ; 无水氯化钐
Samarium oxide 三氧化二钐 ; 供应氧化钐
samarium poisoning [核] 钐中毒
samarium boride 硼化钐
samarium nitride 氮化钐
samarium cobalt 钐钴 ; 钐钴合金 ; 钐钴磁铁
Samarium nitrate 硝酸钐 ; 水合硝酸钐
samarium carbide 碳化钐
同义词: Sm atomic number 62
以上来源于: WordNet
N a silvery metallic element of the lanthanide series occurring chiefly in monazite and bastnaesite and used in carbon-arc lighting, as a doping agent in laser crystals, and as a neutron-absorber. Symbol: Sm; atomic no: 62; atomic wt: 150.36; valency: 2 or 3; relative density: 7.520; melting pt: 1074°C; boiling pt: 1794°C 钐
Most famously, uranium-238 decays into lead-206 with a half life of 4.5 billion years, though radioactive rubidium and samarium are also useful for dating things billions of years old.
最为有名的就是铀- 238衰变为铅- 206的半衰期为45亿年,当然放射性铷和钐也同样对测算几十亿年前的物体的年龄很有用。
The availability of high performance magnets, like samarium cobalt and neodymium-boron-iron, has made it possible to improve the performance of brushless dc motors significantly.
高性能的永磁体如钐钴、钕铁硼的问世使得永磁无刷直流电动机的性能大大提高了。
USES: Used for making metallic samarium, permanent magnetic material and electronic devices, etc.
用途:供制作金属钐、永磁材料、电子器件等用。
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