The relationship between thermal decomposition properties of titanium hydride and the Al alloy melt foaming process

2006 ◽  
Vol 60 (29-30) ◽  
pp. 3635-3641 ◽  
Author(s):  
Donghui Yang ◽  
Boyoung Hur
Keyword(s):  
Thermal Decomposition ◽  
Titanium Hydride ◽  
Al Alloy ◽  
Foaming Process ◽  
The Relationship ◽  
Decomposition Properties

Evolution of Al Alloy Melt Foam Pore Structure in Foaming Process

2007 ◽  
Vol 544-545 ◽  
pp. 315-318 ◽  
Author(s):  
Dong Hui Yang ◽  
Chang Hwan Seo ◽  
Da Peng Yao ◽  
Bo Young Hur
Keyword(s):  
Titanium Hydride ◽  
Pore Diameter ◽  
Al Alloy ◽  
Foaming Process ◽  
Small Pore ◽  
Specific Temperature ◽  
The Relationship ◽  
Al Alloy Foam ◽  
Decomposition Properties ◽  
Foaming Time

A study was carried out to understand the relationship between the pore structure’s evolution of Al alloy melt foam and its preparation variables, which include decomposition properties of titanium hydride, the stirring foaming time and the holding foaming time. The results show that the foaming process of Al alloy melt can be inferred by the relation curves of decomposition quantity of titanium hydride and time at a specific temperature. The porosity of Al alloy melt during stirring foaming period is kept constant while the pore number increases and pore diameter decreases, which is a new method of fabricating Al alloy foam with a relatively low porosity and small pore size.

A Study on Kinetics Parameters of Titanium Hydride Powder from Its TPD Spectrum for Metal Foam

2007 ◽  
Vol 534-536 ◽  
pp. 937-940 ◽  
Author(s):  
Dong Hui Yang ◽  
Sang Youl Kim ◽  
Bo Young Hur
Keyword(s):  
Titanium Hydride ◽  
Metal Foam ◽  
Al Alloy ◽  
Superposition Method ◽  
Kinetics Parameters ◽  
Foaming Process ◽  
Titanium Hydride Powder ◽  
Temperature Programmed ◽  
Set Up ◽  
Temperature Programmed Decomposition

In this paper, the whole temperature programmed decomposition (TPD) spectrum of titanium hydride was acquired by the special designed set-up. After separating and simulating the TPD spectrum by using Spectrum Superposition Method (SSM), Consulting Table Method (CTM) and differential spectrum technique, the kinetics parameters of titanium hydride and corresponding equations were obtained. Using these kinetics equations, the fabrication parameters of Al alloy foam can be determined and foaming process of Al alloy melt can be predicted.

Effect of Decomposition Kinetics of Titanium Hydride on the Al Alloy Melt Foaming Process

2015 ◽  
Vol 31 (4) ◽  
pp. 361-368 ◽  
Author(s):  
Donghui Yang ◽  
Jianqing Chen ◽  
Hui Wang ◽  
Jinghua Jiang ◽  
Aibin Ma ◽  
...  
Keyword(s):  
Titanium Hydride ◽  
Decomposition Kinetics ◽  
Al Alloy ◽  
Foaming Process ◽  
Kinetics Of

STUDY ON FABRICATION OF SHAPED AL ALLOY FOAM BY TWO-STEP FOAMING METHOD

2009 ◽  
Vol 23 (06n07) ◽  
pp. 972-977 ◽  
Author(s):  
XUMING CHU ◽  
HUI WANG ◽  
SIYUAN HE ◽  
DEPING HE
Keyword(s):  
Al Alloy ◽  
Foaming Process ◽  
Irregular Shapes ◽  
Cell Structures ◽  
Al Foam ◽  
Novel Method ◽  
The Relationship ◽  
Al Alloy Foam

In this study, a novel method two-step foaming method (TSFM) has been proposed to fabricate Al alloy foams with irregular shapes. The two steps Al alloy foaming process and cell-structures evolution have been investigated experimentally. The relationship between foamable precursor, foaming parameters and cell-structures of the final foam samples has been observed. Moreover, the Al foam samples with regular and irregular shapes prepared by TSFM are shown in this paper.

The effect of a detonation nanodiamond coating on the thermal decomposition properties of RDX explosives

2014 ◽  
Vol 16 (33) ◽  
pp. 17648-17657 ◽  
Author(s):  
Yi Tong ◽  
Rui Liu ◽  
Tonglai Zhang
Keyword(s):  
Thermal Decomposition ◽  
Detonation Nanodiamond ◽  
The Relationship ◽  
Decomposition Properties

The relationship between the reactivity of the NDRs and the DND coating amount exhibits a volcano-shaped curve.

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