Термодинамическая оценка реакций антиоксидантнов Al, SіC, Nі, протекающих в периклазоуглеродистых огнеупорах до температур 1000 К
Вантажиться...
Дата
2017
ORCID
DOI
Науковий ступінь
Рівень дисертації
Шифр та назва спеціальності
Рада захисту
Установа захисту
Науковий керівник
Члени комітету
Видавець
НТУ "ХПИ"
Анотація
В статье приводятся данные о возможности одновременного использования антиоксидантных добавок Al, SіC, Nі при повышении температур до 1000 К. Путем выполнения термодинамического анализа различных реакций химического взаимодействия антиоксидантов определена термодинамическая возможность их совместного использования, приоритетность протекания реакции окисления алюминия и термодинамическая вероятность фазообразования диоксида кремния, оксида и диоксида углерода. Обсуждаются вопросы взаимодействия антиоксидантов с соединениями, входящими в состав периклазоуглеродистых огнеупоров, а также возможность их взаимодействия между собой.
The article presents data on the possibility of simultaneous using of antioxidant additives Al, SiC, Ni during increase temperatures up to 1000 K. By implementation of thermodynamic analysis of the chemical interaction various reactions of antioxidants, the thermodynamic possibility of their joint using, the priority of the oxidation of aluminum reaction and the thermodynamic probability of phase formation of silicon dioxide, carbon dioxide and carbon monoxide are determined. The smallest thermodynamic probability of oxidation of nickel is determined. The questions of interaction of antioxidants with compounds included in periclase-carbon refractories and the possibility of their interaction between themselves are discussed. The possibility of the appearance of an aluminum melt with during of increase temperature up to 933 K is indicate. The thermodynamic probability of formation of aluminum carbide from a liquid phase is considered and confirmed. The authors considered the structure of the state diagram of the system Ni – Al. The main phases, the features of their interaction with each other and the field of existence are described. A conclusion is made about the impossibility of chemical interaction between aluminum and nickel.
The article presents data on the possibility of simultaneous using of antioxidant additives Al, SiC, Ni during increase temperatures up to 1000 K. By implementation of thermodynamic analysis of the chemical interaction various reactions of antioxidants, the thermodynamic possibility of their joint using, the priority of the oxidation of aluminum reaction and the thermodynamic probability of phase formation of silicon dioxide, carbon dioxide and carbon monoxide are determined. The smallest thermodynamic probability of oxidation of nickel is determined. The questions of interaction of antioxidants with compounds included in periclase-carbon refractories and the possibility of their interaction between themselves are discussed. The possibility of the appearance of an aluminum melt with during of increase temperature up to 933 K is indicate. The thermodynamic probability of formation of aluminum carbide from a liquid phase is considered and confirmed. The authors considered the structure of the state diagram of the system Ni – Al. The main phases, the features of their interaction with each other and the field of existence are described. A conclusion is made about the impossibility of chemical interaction between aluminum and nickel.
Опис
Ключові слова
температура, карбид, углерод, temperature, carbides, carbon
Бібліографічний опис
Шабанова Г. Н. Термодинамическая оценка реакций антиоксидантнов Al, SіC, Nі, протекающих в периклазоуглеродистых огнеупорах до температур 1000 К / Г. Н. Шабанова, В. В. Повшук, Д. А. Бражник // Вісник Нац. техн. ун-ту "ХПІ" : зб. наук. пр. Сер. : Хімія, хімічна технологія та екологія. – Харків : НТУ "ХПІ", 2017. – № 48 (1269). – С. 93-97.