Carbothermal synthesis of titanium nitride
Carbothermal synthesis of titanium nitride
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DOI：
10.1007/bf00541554
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发表时间：
1992-08
影响因子：
4.5
通讯作者：
G. White;K. MacKenzie;J. Johnston
中科院分区：
文献类型：
--
作者：
G. White;K. MacKenzie;J. Johnston
通过在1150 ° C下在氮气气氛中用碳还原TiO2，对六个TiO2样品（两个金红石和四个锐钛矿）和九个碳样品形成TiN的反应性的研究表明，反应受TiO2和碳的化学和物理性质的影响。虽然锐钛矿和金红石的行为相似，但它们的反应性受到杂质的不利影响，例如那些故意添加到颜料级TiO 2中作为表面涂层的杂质。有一些证据表明，TiO 2的反应性随着表面积的增加而增加。具有较高灰分含量的碳似乎更具反应性。碳的反应性通常随着表面积的增加而增加，如通过气体渗透方法（BET氮吸附和Blaine气体渗透）所测量的。
Studies of the reactivity of six Ti02 samples (two rutiles and four anatases) and nine carbon samples towards the formation of TiN by reduction of Ti02 with carbon in a nitrogen atmosphere at 1150~ show that the reaction is influenced by the chemical and physical properties of both the Ti02 and the carbon. Although anatases and rutiles behave similarly, their reactivities are adversely affected by the presence of impurities such as those deliberately added as surface coatings in pigment-grade TiO 2. There is some evidence that the reactivity of the TiO 2 increases with increasing surface area. Carbons with higher ash contents appear to be more reactive. The reactivity of the carbons generally increases with increasing surface area, as measured by gas penetration methods (BET nitrogen adsorption and Blaine gas permeation).