Properties of the intermetallic phase Nb3Al prepared by a calcium hydride reduction process

2014 ◽  
Vol 51 (1) ◽  
pp. 43-50 ◽  
Author(s):  
A. V. Kasimtsev ◽  
S. N. Yudin ◽  
A. I. Logacheva ◽  
T. A. Sviridova
Keyword(s):  
Intermetallic Phase ◽  
Reduction Process ◽  
Calcium Hydride ◽  
Hydride Reduction

Synthesis of Powder Alloys Based on the Ti–Ni–Hf System via a Calcium Hydride Reduction Process

2019 ◽  
Vol 55 (5) ◽  
pp. 449-457
Author(s):  
A. V. Kasimtsev ◽  
S. S. Volod’ko ◽  
S. N. Yudin ◽  
T. A. Sviridova ◽  
V. V. Cheverikin
Keyword(s):  
Reduction Process ◽  
Calcium Hydride ◽  
Hydride Reduction ◽  
Powder Alloys

scholarly journals Calcium Hydride Reduction of Polycyclic Aromatic Hydrocarbons

2019 ◽  
Vol 59 (3) ◽  
pp. 1232-1237 ◽  
Author(s):  
Andrew S. S. Wilson ◽  
Chiara Dinoi ◽  
Michael S. Hill ◽  
Mary F. Mahon ◽  
Laurent Maron ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Calcium Hydride ◽  
Hydride Reduction ◽  
Polycyclic Aromatic

Preparation of Columbium Metal by Calcium Hydride Reduction of Columbium Pentoxide

JOM ◽  
1970 ◽  
Vol 22 (2) ◽  
pp. 50-53 ◽  
Author(s):  
T. K. Mukherjee ◽  
G. R. Kamat ◽  
C. K. Gupta
Keyword(s):  
Calcium Hydride ◽  
Hydride Reduction

scholarly journals Calciothermic powders of rare metals and intermetallic compounds

2020 ◽  
pp. 31-50
Author(s):  
A. V. Kasimtsev ◽  
S. N. Yudin ◽  
Yu. V. Levinsky
Keyword(s):  
Composite Materials ◽  
Intermetallic Compounds ◽  
Raw Materials ◽  
Synthesis Method ◽  
Reduction Process ◽  
Calcium Carbide ◽  
Calcium Hydride ◽  
Rare Metals ◽  
Technical Literature ◽  
Calciothermic Reduction

This paper presents a profound review of scientific and technical literature on the issues of calciothermic production of powders of rare metals, intermetallic compounds, composite materials and refractory oxygen-free compounds (carbides, nitrides). Calciothermic reduction is a metallothermic synthesis method for those substances where calcium or its derivatives, such as calcium hydride or calcium carbide, are used as a reducing agent. Thermodynamics aspects of a reduction process are covered in the paper broadly, with particular emphasis on assessing the reduction depth of original oxide raw materials, as TiO2. The mechanism and kinetics of calciothermic synthesis of single-component and multi-component alloys are described. Presented are both technological means of obtaining materials and hardware resources of many varieties of calciothermic method. The key features of the work are generalization and systematization of properties (chemical, physical, technological) of materials synthesized by calciothermic method. The data are accumulated in the appropriate tables and divided by substance classes (powders of metals and alloys, powders of intermetallic compounds, powders of carbides, powders of nitrides, and powders of composite materials). Methods of calciothermic powder making in case of the singlecomponent and complex multi-component systems are briefly described. This work will be interesting to the students of metallurgical profile and specialists whose scientific interests are in the field of material synthesis by methods of powder metallurgy.

scholarly journals Effect of Dissolution Temperature on Purity of LaNi5 Powder Synthesized with the Combustion-Reduction Method

2021 ◽  
Vol 53 (5) ◽  
pp. 210512
Author(s):  
Ade Utami Hapsari ◽  
Retna Deca Pravitasari ◽  
Hanif Yuliani ◽  
Damisih Damisih ◽  
Deni Shidqi Khaerudini ◽  
...  
Keyword(s):  
Room Temperature ◽  
Reduction Method ◽  
Intermetallic Phase ◽  
Reduction Process ◽  
Plateau Pressure ◽  
Synthesis Process ◽  
Optimal Method ◽  
Black Powder ◽  
Powder Samples ◽  
Precursor Powders

The LaNi5 intermetallic phase has been extensively investigated because of its excellent properties, such as attractive hydrogen storage, medium plateau pressure, and easy activation. LaNi5 phase is generally produced by a complicated method, which involves several steps, i.e. melting, alloying, casting, softening and making them into powder. This study aimed to develop a new LaNi5 synthesis process by modifying the combustion-reduction method. In this method it is very important to produce La2NiO4, because LaNi5 is formed from the process of reducing this phase. The precursor powders La(NO3)3.6H2O and Ni(NO3)2.6H2O were reacted with distilled water as a solvent medium and mixed using magnetic stirring. The synthesis process was carried out at room temperature, 60 °C, 70 °C, and 80 °C for 10 minutes until the solution became transparent green. The solution was then dried for 2 hours at 100 °C to form a transparent green gel. The gel was calcined at a temperature of 500 °C for 2 hours, producing a black powder. The optimal black powder was then reduced using CO gas at 600 °C for 2 hours. The powder samples were characterized using XRD, FTIR, and SEM-EDX. The analysis revealed that synthesis at room temperature was the most optimal method for the reduction process because it produced the most La2NiO4, at 12.135 wt%.

scholarly journals Calcium Hydride Reduction of Polycyclic Aromatic Hydrocarbons

2019 ◽  
Vol 132 (3) ◽  
pp. 1248-1253 ◽  
Author(s):  
Andrew S. S. Wilson ◽  
Chiara Dinoi ◽  
Michael S. Hill ◽  
Mary F. Mahon ◽  
Laurent Maron ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Calcium Hydride ◽  
Hydride Reduction ◽  
Polycyclic Aromatic

The Influence of Electron-Beam Treatment on the Structure of a TiNi Powder Alloy Obtained by Calcium-Hydride Reduction

2021 ◽  
Vol 15 (5) ◽  
pp. 1067-1071
Author(s):  
S. G. Anikeev ◽  
N. V. Artyukhova ◽  
M. I. Kaftaranova ◽  
V. N. Khodorenko ◽  
E. V. Yakovlev ◽  
...  
Keyword(s):  
Electron Beam ◽  
Powder Alloy ◽  
Calcium Hydride ◽  
Electron Beam Treatment ◽  
Hydride Reduction
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