scholarly journals Effect of high temperature-high pressure treatment on microstructure and mechanical properties of Cu-Cr alloy

2020 ◽  
Author(s):  
Tao Gu ◽  
Jingwen Li ◽  
Fengqiang Xu ◽  
Li Wu ◽  
Yuhong Zhao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Pressure ◽  
High Temperature ◽  
Pressure Treatment ◽  
High Pressure Treatment ◽  
Microstructure And Mechanical Properties ◽  
High Temperature High Pressure

Changes in the defect structure of diamond due to high temperature+ high pressure treatment

1975 ◽  
Vol 344 (1636) ◽  
pp. 111-130 ◽  
Keyword(s):  
Electron Microscopy ◽  
High Pressure ◽  
High Temperature ◽  
Optical Absorption ◽  
Defect Structure ◽  
Pressure Treatment ◽  
High Pressure Treatment ◽  
X Ray ◽  
High Temperature High Pressure ◽  
Absorption Measurements

Type la and type IIa diamonds have been heated to temperatures in the range 2000-2300 °C under a pressure of about 4.8 GPa. The changes in the defect structure of these diamonds as a result of the heat treatm ent have been examined by optical absorption measurements, integrated X-ray spike measurements and by electron microscopy. Type la diamonds changed colour from colourless to yellow after being heated for 1 min in the temperature range 2250-2300 °C and it has been shown that the yellowing was due to scattering. The scattering centres responsible were elliptically shaped cracks in the cube planes with their longest dimension in a <110> direction

scholarly journals Revealing the Defects Introduced in N- or Ge-doped Cz-Si by γIrradiation and High Temperature-High Pressure Treatment

2008 ◽  
Vol 114 (2) ◽  
pp. 439-446 ◽  
Author(s):  
K. Wieteska ◽  
A. Misiuk ◽  
M. Prujszczyk ◽  
W. Wierzchowski ◽  
B. Surma ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Pressure Treatment ◽  
High Pressure Treatment ◽  
High Temperature High Pressure

scholarly journals Effect of High Pressure Treatment on Poly(lactic acid)/Nano–TiO2 Composite Films

Molecules ◽  
2018 ◽  
Vol 23 (10) ◽  
pp. 2621 ◽  
Author(s):  
Hai Chi ◽  
Wenhui Li ◽  
Chunli Fan ◽  
Cheng Zhang ◽  
Lin Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Pressure ◽  
Lactic Acid ◽  
Composite Film ◽  
Composite Films ◽  
Barrier Properties ◽  
Poly Lactic Acid ◽  
Pressure Treatment ◽  
Nano Tio2 ◽  
High Pressure Treatment

The microstructure, thermal properties, mechanical properties and oxygen and water vapor barrier properties of a poly(lactic acid) (PLA)/nano-TiO2 composite film before and after high pressure treatment were studied. Structural analysis showed that the functional group structure of the high pressure treated composite film did not change. It was found that the high pressure treatment did not form new chemical bonds between the nanoparticles and the PLA. The micro-section of the composite film after high pressure treatment became very rough, and the structure was depressed. Through the analysis of thermal and mechanical properties, high pressure treatment can not only increase the strength and stiffness of the composite film, but also increase the crystallinity of the composite film. Through the analysis of barrier properties, it is found that the barrier properties of composite films after high pressure treatment were been improved by the applied high pressure treatment.

High-temperature high-pressure polymerized urethane dimethacrylate—Mechanical properties and monomer release

2014 ◽  
Vol 30 (3) ◽  
pp. 350-356 ◽  
Author(s):  
Anh Chi Phan ◽  
Mie-leng Tang ◽  
Jean-François Nguyen ◽  
N. Dorin Ruse ◽  
Michaël Sadoun
Keyword(s):  
Mechanical Properties ◽  
High Pressure ◽  
High Temperature ◽  
Urethane Dimethacrylate ◽  
High Temperature High Pressure
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