罗学涛, 谢小林, 邓克明. TiB2粉料的合成与纯化研究[J]. 南昌航空大学学报(自然科学版), 2001, 15(1): 6-10.
引用本文: 罗学涛, 谢小林, 邓克明. TiB2粉料的合成与纯化研究[J]. 南昌航空大学学报(自然科学版), 2001, 15(1): 6-10.
shu
Luo Xuetao, Xie Xiao-lin, Deng Ke-ming. Study on Synthesis and Purification of Titanium Diboride Powder[J]. Journal of nanchang hangkong university(Natural science edition), 2001, 15(1): 6-10.
Citation: Luo Xuetao, Xie Xiao-lin, Deng Ke-ming. Study on Synthesis and Purification of Titanium Diboride Powder[J]. Journal of nanchang hangkong university(Natural science edition), 2001, 15(1): 6-10.
shu

TiB2粉料的合成与纯化研究

Study on Synthesis and Purification of Titanium Diboride Powder

    摘要
  • 摘要: 基于SHS还原反应合成TiB2混合粉料,研究了酸洗条件对TiB2纯度的影响.实验结果表明,TiO2-B2O3-Mg三元系统的化学反应由两部分组成,第一部分由金属Mg还原出B和Ti单体,第二部分由两种单体化合反应生成TiB2.TiB2粉料的纯度主要取决于酸洗条件.提高盐酸浓度、增加酸过量和延长酸洗时间可以提高TiB2粉料的纯度,而升高酸洗温度还可以大大加快酸洗速度.

     

    Abstract: Based on SHS reductive reaction,TiB2 mixed powder was synthesized,and the effects of acid washing conditions on the purity of TiB2 powder were investigated.The experimental results showed that the chemical reaction of the TiO2 B2O3 Mg system consisted of two parts.In the first step,the elements of B and Ti were reduced by Mg powder,and secondly,the TiB2 was formed by Chemical combination of the two monomer elements.The purity of TiB2 powder mainly depends on acid washing conditions.With the concentration of hydrochloric acid and amount of excessive acid increasing and the acid washing time prolonging,the purity of TiB2 powder increase.Moreover,with the acid washing temperature rising up,the acid washing velocity can be considerably quickened.

     

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