Phase transformation and thermal expansion of MgNi alloys in a hydrogen atmosphere

1982 ◽  
Vol 88 (1) ◽  
pp. 57-61 ◽  
Author(s):  
S. Ono ◽  
Y. Ishido ◽  
K. Imanari ◽  
T. Tabata ◽  
Y.K. Cho ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Phase Transformation ◽  
Hydrogen Atmosphere ◽  
Ni Alloys

Microstructural and Microchemical Characterization of Nickel Sulfide Inclusions in Plate Glass

1991 ◽  
Vol 49 ◽  
pp. 962-963
Author(s):  
J. Cooper ◽  
O. Popoola ◽  
W. M. Kriven
Keyword(s):  
Thermal Expansion ◽  
Phase Transformation ◽  
Glass Matrix ◽  
Nickel Sulfide ◽  
Plate Glass ◽  
Thermal Expansion Mismatch ◽  
Volume Increase ◽  
Β Phase ◽  
Microchemical Characterization

Nickel sulfide inclusions have been implicated in the spontaneous fracture of large windows of tempered plate glass. Two alternative explanations for the fracture-initiating behaviour of these inclusions have been proposed: (1) the volume increase which accompanies the α to β phase transformation in stoichiometric NiS, and (2) the thermal expansion mismatch between the nickel sulfide phases and the glass matrix. The microstructure and microchemistry of the small inclusions (80 to 250 μm spheres), needed to determine the cause of fracture, have not been well characterized hitherto. The aim of this communication is to report a detailed TEM and EDS study of the inclusions.

Transformation behavior of yttria stabilized tetragonal zirconia polycrystal–TiB2 composites

2001 ◽  
Vol 16 (7) ◽  
pp. 2158-2169 ◽  
Author(s):  
B. Basu ◽  
J. Vleugels ◽  
O. Van Der Biest
Keyword(s):  
Thermal Expansion ◽  
Phase Transformation ◽  
Low Temperature ◽  
Tetragonal Zirconia ◽  
Mechanical Analysis ◽  
Transformation Behavior ◽  
Thermal Expansion Data ◽  
Thermally Induced ◽  
First Time ◽  
Tetragonal Zirconia Polycrystal

The objective of the present article is to study the influence of TiB2 addition on the transformation behavior of yttria stabilized tetragonal zirconia polycrystals (Y-TZP). A range of TZP(Y)–TiB2 composites with different zirconia starting powder grades and TiB2 phase contents (up to 50 vol%) were processed by the hot-pressing route. Thermal expansion data, as obtained by thermo-mechanical analysis were used to assess the ZrO2 phase transformation in the composites. The thermal expansion hysteresis of the transformable ceramics provides information concerning the transformation behavior in the temperature range of the martensitic transformation and the low-temperature degradation. Furthermore, the transformation behavior and susceptibility to low-temperature degradation during thermal cycling were characterized in terms of the overall amount and distribution of the yttria stabilizer, zirconia grain size, possible dissolution of TiB2 phase, and the amount of residual stress generated in the Y-TZP matrix due to the addition of titanium diboride particles. For the first time, it is demonstrated in the present work that the thermally induced phase transformation of tetragonal zirconia in the Y-TZP composites can be controlled by the intentional addition of the monoclinic zirconia particles into the 3Y-TZP matrix.

scholarly journals Effects of Electrolyte Composition and Additives on the Formation of Invar Fe-Ni Alloys with Low Thermal Expansion Electrodeposited from Sulfate Bath

2018 ◽  
Vol 104 (10) ◽  
pp. 585-593 ◽  
Author(s):  
Yuki Kashiwa ◽  
Nobuaki Nagano ◽  
Tomio Takasu ◽  
Shigeo Kobayashi ◽  
Keisuke Fukuda ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Electrolyte Composition ◽  
Ni Alloys ◽  
Low Thermal Expansion ◽  
Sulfate Bath

scholarly journals Real-time observation of the thermally-induced phase transformation in GeTe and its thermal expansion properties

2019 ◽  
Vol 165 ◽  
pp. 327-335 ◽  
Author(s):  
Xuan Quy Tran ◽  
Min Hong ◽  
Hiroshi Maeno ◽  
Youichirou Kawami ◽  
Takaaki Toriyama ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Phase Transformation ◽  
Real Time ◽  
Thermally Induced ◽  
Time Observation ◽  
Real Time Observation

Stability of the magnetic phase transformation in shocked Fe-Ni alloys

1973 ◽  
Vol 28 (4) ◽  
pp. 941-943 ◽  
Author(s):  
R. W. Rohde ◽  
R. A. Graham
Keyword(s):  
Phase Transformation ◽  
Magnetic Phase ◽  
Ni Alloys

Phase Transformation and Thermal Expansion of Zirconium and Hafnium Titanates and Their Solid Solutions

1988 ◽  
Vol 71 (2) ◽  
pp. 120-127 ◽  
Author(s):  
HIROYUKI IKAWA ◽  
AKIHITO IWAI ◽  
KAZUYUKI HIRUTA ◽  
HIROMASA SHIMOJIMA ◽  
KAZUYORI URABE ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Phase Transformation ◽  
Solid Solutions

scholarly journals Effects of Electrolyte Composition and Additives on the Formation of Invar Fe–Ni Alloys with Low Thermal Expansion Electrodeposited from Sulfate Bath

2019 ◽  
Vol 59 (3) ◽  
pp. 514-523 ◽  
Author(s):  
Yuki Kashiwa ◽  
Nobuaki Nagano ◽  
Tomio Takasu ◽  
Shigeo Kobayashi ◽  
Keisuke Fukuda ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Electrolyte Composition ◽  
Ni Alloys ◽  
Low Thermal Expansion ◽  
Sulfate Bath
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