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1)  lanthanum chromate(LaCrO_3)
铬酸镧(LaCrO3)
2)  lanthanum chromite
铬酸镧
1.
The powders of calcium-doped lanthanum chromite were synthesized by the low temperaturecombustion methodusing organic precursor prepared by citric acid-nitrate system,and some process parameters were optimized by orthogonal experiment.
通过正交试验,确定了用柠檬酸-硝酸盐体系制备有机前驱体,低温燃烧法合成掺钙铬酸镧粉体的优化工艺参数,讨论了粉体煅烧温度、柠檬酸量、溶胶pH值、乙二醇量、溶胶陈化时间和掺钙量对粉体BET比表面积的影响。
2.
This paper introduces the preparation methods and application fields of the doped lanthanum chromite material, expounds its performance advantages and study trends in each application field, and analyzes its market prospect.
介绍了掺杂铬酸镧材料的制备方法和应用领域,阐述了铬酸镧材料在各应用领域中的性能优势和研究动向,分析了该材料的市场前景。
3.
Lattice distorts and lattice parameters of lanthanum chromite decrease with increasing Sr content.
Sr掺杂使铬酸镧晶格产生畸变,随Sr含量的增加,晶格常数逐渐变小。
3)  Lanthanum chromate
铬酸镧
4)  lanthanum chromites
铬酸镧
1.
Binder,shaping method and pressure are key processing parameters for blank shaping of lanthanum chromites electrothermal pipe.
粘合剂、成型方式及成型压力是铬酸镧电热管素坯成型的关键工艺参数。
2.
Nano-powder of lanthanum chromites were synthesized by low-temperature combustion method.
用低温燃烧合成法合成了铬酸镧纳米粉体。
3.
Low-temperature combustion synthesis of lanthanum chromites (La_(1-x)Ca_xCrO_3) super-fine powder was carried out by using lanthanum and chromium nitrate as cationic sources and oxidant,and ammonium nitrate as combustion aid.
用金属硝酸盐为阳离子源和氧化剂,硝酸铵为助燃剂低温燃烧合成了铬酸镧超细粉。
5)  La_(1-x)Sr_xCrO_3
铬酸锶镧
1.
Synthesis of Nanocrystalline La_(1-x)Sr_xCrO_3 by Sol-Gel Method;
溶胶-凝胶法合成纳米铬酸锶镧的工艺研究
2.
Preparation and Sintering Behavior of Nano-scale La_(1-x)Sr_xCrO_3 Powder;
纳米铬酸锶镧制备及烧结行为
3.
Nano-La_(1-x)Sr_xCrO_3 was prepared by sol-gel process and was compacted into green bodies under high pressure.
通过溶胶-凝胶法制备了铬酸锶镧(La_(1-x)Sr_xCrO_3)纳米粉体,采用高压成型、无压烧结工艺进行了烧结试验并检测了烧结体的物理性能。
6)  LaCrO_3
铬酸镧
1.
The results show that Li element doping results in decrease of the LaCrO_3 lattice parameters and the synthetic temperature of Li-doped lanthanum chromate.
采用溶胶-凝胶法,按化学配比将锂元素掺入铬酸镧中制得粉末。
补充资料:铬酸镧陶瓷
分子式:
CAS号:

性质: 主晶相为铬酸镧(LaCrO3)的陶瓷材料。具有立方晶系钙钛矿结构。密度6.5g/cm3。熔点2490℃。100℃时电阻率1Ω·cm。向材料直接通电可发热,其表面温度可达~2000℃,呈黑色或深墨绿色。室温至1000℃的平均线热膨胀系数为9.7×10-6/℃室温时导热系数约为0.018J/(cm·s·℃)。主要原料为三氧化三镧和氧化铬。采用一般电子陶瓷工艺可制成棒形发热体,经高温烧结而成。用它制作的发热体表面辐射率和热效率都高,可在空气中工作到1400℃,如温度继续升高则铬挥发严重,因而使用受到限制。添加氧化锶、氧化钡可在一定程度上限制铬的发挥,提高高温氧化气氛下的稳定性。

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