Influence of Lithium on Specific Heat and Changes in the Thermodynamic Functions of Aluminum Alloy AB1

Ганиев, И. Н.; Nazarova, Mehrubon Tolibdzhonovna; Yakubov, U. Sh.; Safarov, A. G.; Kurbonova, M. Z.

doi:10.1134/s0018151x20020066

Cited by 7 publications

(4 citation statements)

References 5 publications

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“…To determine the cooling rate we plotted specimen cooling curves. The cooling curves are specimen temperature vs time functions for air cooling [7][8][9][10][11][12][13][14][15].…”

Section: Resultsmentioning

confidence: 99%

Effect of bismuth additions on the thermophysical and thermodynamical properties of E-AlMgSi (Aldrey) aluminum semiconductor alloy

Ганиев¹,

Abulakov²,

Jayloev³

et al. 2020

MoEM

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The economic feasibility of using aluminum as a conductive material is explained by the favorable ratio of its cost to the cost of copper. In addition, one should take into account that the cost of aluminum has remained virtually unchanged for many years. When using conductive aluminum alloys for the manufacture of thin wire, winding wire, etc., certain difficulties may arise in connection with their insufficient strength and a small number of kinks before fracture. Aluminum alloys have been developed in recent years which even in a soft state have strength characteristics that allow them to be used as a conductive material. The electrochemical industry is one of the promising application fields of aluminum. E-AlMgSi (Aldrey) conductor aluminum alloys represent this group of alloys. This work presents data on the temperature dependence of heat capacity, heat conductivity and thermodynamic functions of the E-AlMgSi (Aldrey) aluminum alloy doped with bismuth. The studies have been carried out in "cooling" mode. It has been shown that the heat capacity and thermodynamic functions of the E-AlMgSi (Aldrey) aluminum alloy doped with bismuth increase with temperature and the Gibbs energy decreases. Bismuth additions of up to 1 wt.% reduce the heat capacity, heat conductivity, enthalpy and entropy of the initial alloy and increase the Gibbs energy.

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“…To determine the cooling rate we plotted specimen cooling curves. The cooling curves are specimen temperature vs time functions for air cooling [7][8][9][10][11][12][13][14][15].…”

Section: Resultsmentioning

confidence: 99%

Effect of bismuth additions on the thermophysical and thermodynamical properties of E-AlMgSi (Aldrey) aluminum semiconductor alloy

Ганиев¹,

Abulakov²,

Jayloev³

et al. 2020

MoEM

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“…Теплоемкость алюминиевого сплава AlTi0,1 с натрием измеряли в режиме «охлаждения» по методикам, описанным в работах [12][13][14][15]. Обработка результатов измерений и построение графиков производилось с помощью программ MS Excel и Sigma Plot.…”

Section: аннотация в работе теплоемкость алюминиевого проводникового ...unclassified

TEMPERATURE DEPENDENCE OF HEAT CAPACITY AND CHANGES IN THERMODYNAMIC FUNCTIONS OF ALUMINUM CONDUCTING ALLOY AlTi0.1 WITH SODIUM

Ganiev,

Rakhmatulloeva,

Zokirov

et al. 2024

Vestn. Kuzbasskogo gos. teh. univ.

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“…Далее измеряемый образец и эталон одновременно выдвигаем из электропечи. С этого момента фиксируем снижение температуры и записываем показания цифрового термометра на компьютере через 10 с. Охлаждаем образец и эталон ниже 30 ºС [9][10][11][12]. Рисунок 1 -Установка для определения теплоемкости твердых тел в режиме «охлаждения» Figure 1 -Installation for determining the heat capacity of solids in the "cooling" mode Для измерения температуры использовали многоканальный цифровой термометр, который позволял прямо фиксировать результаты измерений на компьютере в виде таблиц.…”

Section: теория методаunclassified

Влияние Алюминия На Удельную Теплоемкость И Изменениe Термодинамических Функций Цинка

Ганиев¹,

Содикова²,

Якубов³

et al. 2021

Ползуновский Вестник

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Heat capacity is the most important characteristic of substances, and from its change with temperature one can determine the type of phase transformation, Debye temperature, energy of vacancy formation, coefficient of electronic heat capacity, and other properties. In this work, the heat capacity of the alloys of the Zn-Al system was determined in the "cooling" mode, by the known heat capacity of the reference sample of granulated zinc of the CV00 grade. For this, by processing the cooling curves of samples from alloys of the Zn-Al system and the standard, equations are obtained that describe their cooling rates. Further, according to the experimentally found values of the cooling rates of the standard and samples from alloys, knowing their masses, polynomials are established for the temperature dependence of the heat capacity of the alloys and the standard, which are described by a four-term equation. Using integrals of specific heat capacity, the temperature dependence of changes in enthalpy, entropy, and Gibbs energy is calculated. The obtained dependences show that with an increase in temperature, the heat capacity, heat transfer coefficient, enthalpy and entropy of the alloys increase, while the Gibbs energy decreases. In this case, the addition of aluminum increases the heat capacity, enthalpy and entropy of zinc, while the value of the Gibbs energy decreases.

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Influence of Lithium on Specific Heat and Changes in the Thermodynamic Functions of Aluminum Alloy AB1

Cited by 7 publications

References 5 publications

Effect of bismuth additions on the thermophysical and thermodynamical properties of E-AlMgSi (Aldrey) aluminum semiconductor alloy

Effect of bismuth additions on the thermophysical and thermodynamical properties of E-AlMgSi (Aldrey) aluminum semiconductor alloy

TEMPERATURE DEPENDENCE OF HEAT CAPACITY AND CHANGES IN THERMODYNAMIC FUNCTIONS OF ALUMINUM CONDUCTING ALLOY AlTi0.1 WITH SODIUM

Влияние Алюминия На Удельную Теплоемкость И Изменениe Термодинамических Функций Цинка

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