Study of thermal properties of glass system 77% B2O3-23% PbO doped with ZnO in the temperature range 300 to 700 K

1990 ◽  
Vol 25 (1) ◽  
pp. 431-433 ◽  
Author(s):  
A. M. Abousehly ◽  
A. M. Abou-El-Azm ◽  
M. H. Wasfy ◽  
A. A. El-Sharkawy ◽  
M. B. Osman
Keyword(s):  
Thermal Properties ◽  
Glass System ◽  
Temperature Range

Thermal properties of poly(vinilidene fluoride) in the temperature range from 25 to 210 °C

2008 ◽  
Vol 27 (2) ◽  
pp. 204-208 ◽  
Author(s):  
W.N. dos Santos ◽  
C.Y. Iguchi ◽  
R. Gregorio
Keyword(s):  
Thermal Properties ◽  
Temperature Range

Measurement of the thermal properties of Li2CO3, Na2CO3, K2CO3, CaCO3, MgCO3, and NiCO3 in the temperature range 300-700 K by the heat-flash technique

1995 ◽  
Vol 27/28 (1) ◽  
pp. 41-45
Author(s):  
Abdelsalam Abousehly ◽  
Mohamed Ibrahiem ◽  
Mohamed Desouky ◽  
Afaf Abdel-Rahman ◽  
Mohamed Tag-Alden ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Temperature Range ◽  
Flash Technique

The Effect of Sintering Temperature to the Properties of Zinc Oxide

2013 ◽  
Vol 795 ◽  
pp. 419-423 ◽  
Author(s):  
J.H. Lim ◽  
C.K. Yeoh ◽  
Pei Leng Teh ◽  
W.M. Arif ◽  
A. Chik
Keyword(s):  
Thermal Conductivity ◽  
Zinc Oxide ◽  
Thermal Properties ◽  
Solid State ◽  
Sintering Temperature ◽  
Solid State Method ◽  
Influence Of Temperature ◽  
Temperature Range ◽  
Influence Of Temperature On ◽  
State Method

In this paper, different sintering temperature used to study the influence of temperature on the structural and thermal properties of zinc oxide (ZnO). On this research, the sample was prepared by solid-state method for zinc oxide (ZnO) at different sintering temperature which was 700°C, 800°C and 900°C. It was observed that the density of bulk ZnO that sintering at 900°C had the higher value of density 5.03 g/cm3. The microhardness of the bulk ZnO had a higher measurement 397.3 Hv after sintered at 900°C. ZnO that sintering at 900°C had been observed that had thermal conductivity 1.1611W/cm-K in the sintering temperature range 700°C to 900°C.

Comparison of thermal properties of fish collagen and bovine collagen in the temperature range 298–670 K

2017 ◽  
Vol 80 ◽  
pp. 468-471 ◽  
Author(s):  
Marlena Gauza-Włodarczyk ◽  
Leszek Kubisz ◽  
Sławomir Mielcarek ◽  
Dariusz Włodarczyk
Keyword(s):  
Thermal Properties ◽  
Temperature Range ◽  
Bovine Collagen ◽  
Fish Collagen

Thermal polymerization of arylacetylenes: spectroscopic and thermal studies

1994 ◽  
Vol 6 (4) ◽  
pp. 347-383 ◽  
Author(s):  
Marie-Florence Grenier-Loustalot
Keyword(s):  
Thermal Properties ◽  
Reaction Mechanisms ◽  
Thermal Studies ◽  
Thermal Polymerization ◽  
Temperature Range ◽  
H Nmr ◽  
Kinetics Of ◽  
Competing Reactions

The reaction mechanisms and kinetics of endcapped ethynyl polyethers were studies in the temperature range 150-220C. The results obtained by '3C and 'H NMR, FrTIR, HPLC and DSC indicate reactivity differences and competing reactions. These materials were cured and their thermal properties evaluated.

Mechanical and thermal properties of the glassy semiconductor chlorinated Se0 997As0 003 used as an X-ray imaging material

1989 ◽  
Vol 67 (7) ◽  
pp. 686-693 ◽  
Author(s):  
S. O. Kasap ◽  
S. Yannacopoulos
Keyword(s):  
Thermal Properties ◽  
Structural Changes ◽  
Relaxation Times ◽  
Thermal Relaxation ◽  
Mechanical And Thermal Properties ◽  
Debye Relaxation ◽  
X Ray ◽  
Temperature Range ◽  
Glass Transformation ◽  
X Ray Imaging

Mechanical and thermal properties of a typical X-ray imaging material amorphous Se0.997As0.003, chlorinated in the ppm range were investigated using thermal microhardness analysis (TμHA) and differential scanning calorimetry (DSC). The experiments were carried out over a temperature range encompassing the glass transformation to study the nature of structural changes controlling the mechanical and thermal properties. It is shown that the mechanical property microhardness when examined on an Itoh–Shishokin plot of log Vickers hardness number (VHN) vs. temperature (T) exhibits a hardness transition temperature, Tg*, in the glass transformation region. The rates of relaxation of the mechanical and thermal properties in the glass transformation region were studied by investigating the heating rate dependence of the glass transition temperatures, Tg* and Tg, defined empirically on the log VHN vs. T behavior and the DSC glass transformation endotherm, respectively. By applying the present thermoanalytical methods, it has proved possible to identify a typical Vogel–Tammann–Fulcher type of behavior in the mechanical and thermal relaxation times that correlates remarkably well with the viscosity–temperature data of M. Cukierman and D. R. Uhlmann (J. Non-Cryst. Solids, 12, 199 (1973)) as well as the dielectric loss experiments of M. Abkowitz, D. F. Pochan, and J. M. Pochan (J. Appl. Phys. 51, 1539 (1980)). The latter had previously exposed a Williams–Landel–Ferry relation for the Debye relaxation times in a-Se and a-Se: 1% As. It is therefore concluded that the behavior of mechanical, thermal, and dielectric properties of a-Se0997As0003 in the glass transformation region is inversely proportional to the viscosity, which in turn can be adequately described over a temperature range above ~30 °C by a Vogel expression.

Thermal properties of Ga2O3–PbO–P2O5 glass system

2011 ◽  
Vol 104 (3) ◽  
pp. 1051-1054 ◽  
Author(s):  
J. Schwarz ◽  
K. Vosejpková
Keyword(s):  
Thermal Properties ◽  
Glass System

Thermal properties of aqueous solutions of polyvinylpyrrolidone in the temperature range 20?80�C

1990 ◽  
Vol 11 (3) ◽  
pp. 515-523 ◽  
Author(s):  
A. Z. Dakroury ◽  
M. B. S. Osman ◽  
A. W. A. El-Sharkawy
Keyword(s):  
Thermal Properties ◽  
Aqueous Solutions ◽  
Temperature Range
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