Search Results - "Drebushchak, V. A"

Thermal expansion of solids: review on theories by Drebushchak, V. A.

“…The coefficient of thermal expansion of a solid can be derived from (1) anharmonicity of atomic vibrations; (2) lattice dynamics; (3) equation of state by G…”
Get full text

Structural similarity and similarity in thermal properties of the polymorphs: melting and crystallization from the melt of tolbutamide and chlorpropamide by Drebushchak, T. N., Drebushchak, V. A.

“…The polymorphism of tolbutamide and chlorpropamide under melting/crystallization was investigated with using DSC and in situ X-ray powder diffraction. The…”
Get full text

Calorimetric measurements of sodium chloride dihydrate (hydrohalite) by Drebushchak, V. A., Ogienko, A. G.

“…Calorimetric measurements of sodium chloride dihydrate NaCl·2H 2 O (mineral name hydrohalite) were carried out with using DSC. Heat capacity from 190 to 250 K…”
Get full text

Model-free temperature scaling for heat capacity by Drebushchak, V. A.

“…In treating the experimental data on the heat capacity of solids, the essence of any model application is in the searching for the scaling factors ( k i or 1/Θ…”
Get full text

Cooling rate “window” in the crystallization of metacetamol form II by Drebushchak, V. A., McGregor, L., Rychkov, D. A.

“…Melting and crystallization of metacetamol (C 8 H 9 NO 2 , N-(3-hydroxyphenyl)acetamide, structural isomer of paracetamol) were measured using DSC cycling…”
Get full text

Calibration coefficient of a heat-flow DSC; Part II. Optimal calibration procedure by Drebushchak, V. A.

“…One-point (Mettler) and many-point (Netzsch) heat flow calibration of a DSC is discussed. It is shown that the two types of calibration are the alternative…”
Get full text

Glycine phases formed from frozen aqueous solutions: revisited by Surovtsev, N V, Adichtchev, S V, Malinovsky, V K, Ogienko, A G, Drebushchak, V A, Manakov, A Yu, Ancharov, A I, Yunoshev, A S, Boldyreva, E V

“…Glycine phases formed when aqueous solutions were frozen and subsequently heated under different conditions were studied by Raman scattering, x-ray…”
Get more information

Comments on “Spectroscopic and thermographic study of Ni–Zn ferrites” by J.D. Baraliya and H.H. Joshi, J Therm Anal Calorim. 2015;119:85–90 by Drebushchak, V. A.

Get full text

The investigation of ancient pottery: Application of thermal analysis by Drebushchak, V. A., Mylnikova, L. N., Drebushchak, T. N., Boldyrev, V. V.

“…Ancient ceramic samples (single fragments and different parts of pots, unbroken and repaired; total about 180 samples) dated from the transitional period of…”
Get full text

CHANGES IN THE HEAT CAPACITY OF Al2O3-Cr2O3 SOLID SOLUTIONS NEAR THE POINT OF ANTIFERROMAGNETIC PHASE TRANSITION IN Cr2O3 by DREBUSHCHAK, V. A, TURKIN, A. I

“…Al2O3-Cr2O3 solid solutions with 0, 4, 7, 10 and 20 mol% of corundum were synthesized using a high-pressure/high-temperature apparatus and characterized by…”
Get full text

Calibration coefficient of a heat-flow DSC Part 1. Relation to the sensitivity of a thermocouple by Drebushchak, V A

“…Relation between the calibration coefficient of a DSC sensor k(T) and the sensitivity of a thermocouple *e(T) which the sensor is made from was derived from…”
Get full text

Thermoanalytical investigations of ancient ceramics by Drebushchak, V. A, Mylnikova, L. N, Drebushchak, T. N

“…The review consists of four parts. Part I is about the thermal transformation in clay minerals under firing and about the properties of fired clay. The…”
Get full text

Synthesis and calorimetric investigation of stoichiometric Fe-spinels: MgFe2O4 by Turkin, A.I., Drebushchak, V.A.

“…Spinel MgFe2O4 was synthesized at 1373K from oxides MgO and Fe2O3 using silica-tube technique with intermediate grinding. The product is homogeneous and fine…”
Get full text

The Peltier effect by Drebushchak, V. A.

“…Thermodynamic consideration of thermoelectricity in metals was applied to the Peltier effect, like it was done recently for the Seebeck effect. The Peltier…”
Get full text

Experimental heat capacity of LiInS2, LiInSe2, LiGaS2, LiGaSe2, and LiGaTe2 from 180 to 460 K by Drebushchak, V. A., Isaenko, L. I., Lobanov, S. I., Krinitsin, P. G., Grazhdannikov, S. A.

“…Heat capacity of single-crystal samples of five chalcogenides (LiInS 2 , LiInSe 2 , LiGaS 2 , LiGaSe 2 , and LiGaTe 2 ) was measured with DSC in a temperature…”
Get full text

Recommendations on DSC calibration by Pishchur, D. P, Drebushchak, V. A

“…The enthalpy of fusion of indium was measured at the heating rates of 3, 9, and 15 K min.sup.-1 according to two procedures, with and without replacing the…”
Get full text

Synthesis and calorimetric investigation of unstable β-glycine by Drebushchak, V.A., Boldyreva, E.V., Drebushchak, T.N., Shutova, E.S.

“…A new procedure for the synthesis of the unstable β-polymorph of glycine has been developed. The amount of the sample synthesized in one run is enough to carry…”
Get full text

CRYSTALLINE FORMS OF BETULIN: POLYMORPHISM OR PSEUDOPOLYMORPHISM? by Drebushchak, T. N., Mikhailovskaya, A. V., Drebushchak, V. A., Mikhailenko, M. A., Myz’, S. A., Shakhtshneider, T. P., Kuznetsova, S. A.

“…By recrystallization with different solvents as well as decomposition of betulin ethanol solvate at room temperature a new crystalline form of the biologically…”
Get full text

Crystallization of sodium chloride dihydrate (hydrohalite) by Drebushchak, V.A., Drebushchak, T.N., Ogienko, A.G., Yunoshev, A.S.

“…•Crystallization behavior of hydrohalite is poorly known.•A simple and fast procedure of hydrohalite crystallization is reported.•From X-ray diffraction…”
Get full text

Polymorphic effects at the eutectic melting in the H2O–glycine system by Drebushchak, V. A., Ogienko, A. G., Boldyreva, Elena V.

“…Solid mixtures of ice with three glycine polymorphs were heated up to the eutectic melting and the DSC has detected the eutectic temperatures of −2.8 °C for…”
Get full text