Investigation of shock-induced reaction behavior of as-blended and ball-milled Ni+Ti powder mixtures using time-resolved stress measurements

2004 ◽  
Vol 96 (4) ◽  
pp. 2000-2009 ◽  
Author(s):  
Xiao Xu ◽  
Naresh N. Thadhani
Keyword(s):  
Powder Mixtures ◽  
Time Resolved ◽  
Reaction Behavior ◽  
Stress Measurements ◽  
Ti Powder ◽  
Induced Reaction

Development of Nano-Structure Cu-Ti Alloys by Mechanical Alloying Process

2013 ◽  
Vol 829 ◽  
pp. 168-172 ◽  
Author(s):  
Ahdie Pourfereidouni ◽  
Gholam Hossein Akbari
Keyword(s):  
Milled Powder ◽  
Lattice Parameter ◽  
X Ray Diffraction ◽  
Powder Mixtures ◽  
Nano Structure ◽  
Cu Alloys ◽  
Ti Alloys ◽  
Alloy Process ◽  
Electrical Conductivities ◽  
Ti Powder

Cu-Ti system with a terminal solution in the Cu-rich portion of equilibrium Cu-Ti phase diagram with a decreasing trend with temperature shows a potential to develop age hardenable alloys with suitable strength and thermal and electrical conductivities. In the present study, the mechanical alloy process has been employed to increase solubility of Ti in Cu matrix to make age hardenable Cu alloys. Cu-Ti powder mixtures with different rations of 1 and 6 wt% of Ti were milled in planetary ball mill for different milling times of 4, 12, 48, 96 and 192 hours. The milled powder mixtures were investigated and characterised by X-ray diffraction (XRD) technique. The results show increasing in lattice parameter of Cu, which indicates that Ti atoms are dissolved in the Cu matrix. Cu crystal sizes showed decreasing trend which were more obvious in the mixture with higher Ti contents. The final crystal sizes were in the range of 17-23 nm after 192 hours of milling.

scholarly journals Role of oxygen and nitrogen in mechanical alloying mechanism of Ni–Ti powder mixtures

2012 ◽  
Vol 55 (4) ◽  
pp. 268-272 ◽  
Author(s):  
F Neves ◽  
F M Braz Fernandes ◽  
I Martins ◽  
J B Correia
Keyword(s):  
Mechanical Alloying ◽  
Powder Mixtures ◽  
Ti Powder

Spark plasma sintering of WC-Ti powder mixtures and properties of obtained composites

2022 ◽  
Author(s):  
Dariusz Garbiec ◽  
Alexander M. Laptev ◽  
Volf Leshchynsky ◽  
Maria Wiśniewska ◽  
Paweł Figiel ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Powder Mixtures ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Ti Powder

Reactivity in the chromium oxide-calcium fluoride system: An empirical approach

1999 ◽  
Vol 14 (6) ◽  
pp. 2518-2523
Author(s):  
Frans Vos ◽  
Luc Delaey ◽  
Marc De Bonte ◽  
Ludo Froyen
Keyword(s):  
Electron Microscopy ◽  
Thermal Analysis ◽  
Calcium Fluoride ◽  
Reaction Mechanisms ◽  
Sintering Temperature ◽  
X Ray Diffraction ◽  
Powder Mixtures ◽  
Reaction Behavior ◽  
X Ray ◽  
Scanning Electron

The reaction mechanisms observed when sintering loose Cr2O3–CaF2 powder mixtures were analyzed, and the influence of the sintering parameters on the reaction behavior is presented. Using x-ray diffraction (XRD), energy-dispersive spectroscopy (EDS), and differential thermal analysis (DTA) measurements, CaCrO4 was shown to be the reaction product when sintering in air. The reaction occurs in two steps: CaF2 transforms to CaO at the Cr2O3–CaF2 interface, followed by a CaO–Cr2O3 interaction, which creates the reaction product. Scanning electron microscopy (SEM) and x-ray fluorescence (XRF) analysis showed an increasing loss of CaF2 with increasing sintering temperature and heating rate, while an opposite evolution of the amount of reaction product was observed.

scholarly journals Synthesis of TiB2-TiC-Ti3SiC2 Composites by Reactive Hot Pressing of B4C-SiC-Ti Powder Mixtures

2008 ◽  
Vol 49 (10) ◽  
pp. 2335-2340 ◽  
Author(s):  
Hitoshi Taimatsu ◽  
Shigeaki Sugiyama ◽  
Shuhou Koseki
Keyword(s):  
Hot Pressing ◽  
Powder Mixtures ◽  
Ti Powder ◽  
Reactive Hot Pressing

scholarly journals Examination of shock-induced reaction in Ni/Al powder mixtures

2020 ◽  
Author(s):  
Anirban Mandal ◽  
Matthew T. Beason ◽  
Brian J. Jensen
Keyword(s):  
Powder Mixtures ◽  
Al Powder ◽  
Induced Reaction

Effect of Al Content on Structural Changes in Mechanically Alloyed Al-Ti Powder Mixtures

1996 ◽  
Vol 235-238 ◽  
pp. 67-72 ◽  
Author(s):  
Alexandr V. Leonov ◽  
E. Szewczak ◽  
O.E. Gladilina ◽  
Henryk Matyja ◽  
V.I. Fadeeva
Keyword(s):  
Structural Changes ◽  
Mechanically Alloyed ◽  
Powder Mixtures ◽  
Al Content ◽  
Ti Powder
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