scholarly journals High temperature dynamic diffraction experiments on porous nano-diamond particle mixtures

2020 ◽  
Author(s):  
Gerrit T. Sutherland ◽  
Timothy A. Jenkins ◽  
Nicholas Lorenzo ◽  
Eric C. Johnson
Keyword(s):  
High Temperature ◽  
Diamond Particle ◽  
Dynamic Diffraction ◽  
Temperature Dynamic

Microstructural Study of Diamond Deformed Under High Pressure and Temperature

1985 ◽  
Vol 43 ◽  
pp. 230-231
Author(s):  
E. F. Koch
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Lattice Structure ◽  
Diamond Particle ◽  
Polycrystalline Diamond ◽  
Sintering Process ◽  
Ion Milling ◽  
Sintered Compact ◽  
Transmission Electron ◽  
High Pressure Sintering

Because of the extremely rigid lattice structure of diamond, generating new dislocations or moving existing dislocations in diamond by applying mechanical stress at ambient temperature is very difficult. Analysis of portions of diamonds deformed under bending stress at elevated temperature has shown that diamond deforms plastically under suitable conditions and that its primary slip systems are on the ﹛111﹜ planes. Plastic deformation in diamond is more commonly observed during the high temperature - high pressure sintering process used to make diamond compacts. The pressure and temperature conditions in the sintering presses are sufficiently high that many diamond grains in the sintered compact show deformed microtructures.In this report commercially available polycrystalline diamond discs for rock cutting applications were analyzed to study the deformation substructures in the diamond grains using transmission electron microscopy. An individual diamond particle can be plastically deformed in a high pressure apparatus at high temperature, but it is nearly impossible to prepare such a particle for TEM observation, since any medium in which the diamond is mounted wears away faster than the diamond during ion milling and the diamond is lost.

scholarly journals High Temperature Dynamic Tension Behavior of Titanium Tested with Two Different Methods

2017 ◽  
Vol 197 ◽  
pp. 130-139 ◽  
Author(s):  
Francisco Hueto ◽  
Mikko Hokka ◽  
Rafael Sancho ◽  
Jari Rämö ◽  
Kauko Östman ◽  
...  
Keyword(s):  
High Temperature ◽  
Dynamic Tension ◽  
Temperature Dynamic

High temperature dynamic response of SPS-processed Ni3Al

2018 ◽  
Vol 102 ◽  
pp. 26-33 ◽  
Author(s):  
N. Frage ◽  
S. Kalabukhov ◽  
A. Wagner ◽  
E.B. Zaretsky
Keyword(s):  
High Temperature ◽  
Dynamic Response ◽  
Temperature Dynamic

A Fatigue Resistant Polychloroprene Compound for High Temperature Dynamic Applications

1979 ◽  
Vol 52 (4) ◽  
pp. 781-791 ◽  
Author(s):  
R. J. Tabar ◽  
P. C. Killgoar ◽  
R. A. Pett
Keyword(s):  
High Temperature ◽  
Fatigue Life ◽  
Large Particle ◽  
Dynamic Properties ◽  
Temperature Stability ◽  
High Temperature Stability ◽  
Compression Set ◽  
Silica Filler ◽  
High Structure ◽  
Temperature Dynamic

Abstract A polychloroprene material has been developed which can replace the natural rubber materials traditionally used in dynamic, fatigue-producing applications, when these applications require high temperature stability. An optimized compound based on a mercaptan modified polychloroprene with large particle high structure carbon black, silica filler and rapeseed oil has superior compression set, improved heat aged fatigue life and comparable dynamic properties to current NR compounds. This CR compound was designed to have good fatigue life while keeping compression set to a minimum. A positive correlation between tear resistance and fatigue life has been demonstrated for a series of CR compounds.

High temperature dynamic viscosity sensor for engine oil applications

2012 ◽  
Vol 173 (1) ◽  
pp. 102-107 ◽  
Author(s):  
Matthew D. Brouwer ◽  
Lokesh A. Gupta ◽  
Farshid Sadeghi ◽  
Dimitrios Peroulis ◽  
Douglas Adams
Keyword(s):  
High Temperature ◽  
Dynamic Viscosity ◽  
Engine Oil ◽  
Viscosity Sensor ◽  
Temperature Dynamic
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