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Plasmachemical obtaining of hollow spherical oxide particles and their application for thermal spraying

机译:中空球形氧化物粒子的等离子体化学制备及其在热喷涂中的应用

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The formation of particles with hollow spherical shape during plasmachemical processing of solutions is discussed. Substitution of compact particles by hollow ones permits to use coarser powders in thermal spraying technology. Experimetns shown that it is possible to form coating by plasma spraying of CeO_2 hollow particles of size 100 / 200 #mu#m, by gas-flame spraying of Nb_2O_5 or Ta_2O_5 hollow particles of the same size. Anion impurity of ceramic powders produced by plasma spray pyrolysis may be neglected in the case of thermal spraying.
机译:讨论了溶液的等离子体化学处理过程中空心球形颗粒的形成。用中空颗粒代替紧密颗粒可以在热喷涂技术中使用较粗的粉末。实验表明,可以通过等离子喷涂大小为100/200#μm的CeO_2空心颗粒,通过气体喷涂相同大小的Nb_2O_5或Ta_2O_5空心颗粒来形成涂层。在热喷涂的情况下,可以忽略通过等离子喷涂热解产生的陶瓷粉末的阴离子杂质。

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