Влияние механической активации на температуру и скорость горения порошковой смеси Al-Ti-B, а также на фазовый состав и структуру продуктов реакции А. Е. Матвеев, И. А. Жуков
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ArticleContent type: Текст Media type: электронный Other title: Influence of mechanical activation on the temperature and combustion rate of the powder mixture Al-Ti-B, also on the phase composition and structure of reaction products [Parallel title]Subject(s): алюминий-титан-бор | композиционные материалы | механическая активация порошковых систем | экспериментальные исследованияGenre/Form: статьи в сборниках Online resources: Click here to access online
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Перспективы развития фундаментальных наук. Т. 2 : сборник научных трудов XVII Международной конференции студентов, аспирантов и молодых ученых, Россия, Томск, 21-24 апреля 2020 г Т. 2 : Химия. С. 116-118Abstract: The influence of the duration of mechanical activation (MA) on the temperature and burning rate of an Al-Ti-B powder mixture, as well as on the phase composition and structure of reaction products, was studied. It was shown that an increase in the MA duration leads to a change in the structure of particles in the mixture, an increase in the density of the initial samples, and an increase in the rate and temperature of their combustion. It was found that with mechanical activation longer than 180 seconds, these parameters decrease. A change in the duration of mechanical activation does not lead to a qualitative change in the phase composition. All reaction products contain phases Al, AlaTi, TiB2. It is established that the combustion products are TiB2 particles distributed in the Al metal matrix. An AlsTi layer was found between the particles and the matrix. The particle size of TiB2 varies from 0.02 fim to 1 fim. It is established that when the duration of mechanical activation changes, the average particle size in the obtained SHS materials changes.
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The influence of the duration of mechanical activation (MA) on the temperature and burning rate of an Al-Ti-B powder mixture, as well as on the phase composition and structure of reaction products, was studied. It was shown that an increase in the MA duration leads to a change in the structure of particles in the mixture, an increase in the density of the initial samples, and an increase in the rate and temperature of their combustion. It was found that with mechanical activation longer than 180 seconds, these parameters decrease. A change in the duration of mechanical activation does not lead to a qualitative change in the phase composition. All reaction products contain phases Al, AlaTi, TiB2. It is established that the combustion products are TiB2 particles distributed in the Al metal matrix. An AlsTi layer was found between the particles and the matrix. The particle size of TiB2 varies from 0.02 fim to 1 fim. It is established that when the duration of mechanical activation changes, the average particle size in the obtained SHS materials changes.
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