Journal of Materials Synthesis and Processing
SCOPUS (1994-2002)
1573-4870
1064-7562
Cơ quản chủ quản: N/A
Phân tích ảnh hưởng
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Mechanochemical Synthesis of Double Hydroxides
Tập 8 - Trang 251-253 - 2000
It has been demonstrated that the formation of magnesium-aluminium double
hydroxides [Mg(1 − X)Al X (OH)2] X+(A n− X/n ) • m H2O, (A–Cl−, NO− 3, SO2− 4)
occurs during mechanical activation of the mixture of magnesium hydroxide
(brucite) with aluminium chloride, nitrate and sulphate in high-energy
planetary-type activators. The effect of activation time on the formation of the
double hydroxide has ...
Conversion of the Echinoderm Mellita eduardobarrosoi Calcite Skeleton into Porous Hydroxyapatite by Treatment with Phosphated Boiling Solutions
Tập 7 - Trang 211-219 - 1999
The influence of the boiling solution technique (a nonhydrothermal wet
treatment) in the formation of hydroxyapatite (HA) from a novel source, an
echinoderm known as Mellita eduardobarrosoi, whose skeleton contains calcite as
an inorganic constituent, was investigated. The experimental plan explores the
conversion using a batch boiling system composed of KH2PO4 + KOH aqueous
solutions at initial p...
MSR Reduction of Hexachlorobenzene
Tập 8 - Trang 295-300 - 2000
This paper deals with the mechanochemical degradation of hexachlorobenzene over
Li, Na, K, Mg, Ca, Ba, Ti, and W. Apart from the mixtures containing Ti and W,
the other systems react in a combustive mode leading to the chlorides and the
carbides of the inorganic substrates. Reaction stoichiometries and heats were
experimentally determined. The activation time required to ignite the reaction
decrea...
Combustion Synthesis of Glass (B2O3-Al2O3-MgO)-Ceramic (TiB2) Composites
Tập 10 - Trang 163-174 - 2002
The combustion synthesis, or self-propagating high temperature synthesis (SHS),
technique has been used to produce glass ceramic composites that have a glass
matrix based on B2O3-MgO-Al2O3and a crystalline ceramic phase of TiB2.
Conditions for producing glassy materials by the SHS technique are discussed and
the thermodynamics of these combustion reactions are analyzed. The combustion
characterist...
Reaction Bonding of Three-Layer Alumina-Based Composites
Tập 7 - Trang 195-203 - 1999
Three-layer alumina-based composites with Al2O3-containing mullite as the outer
layer and ZrO2-containing alumina as the inner layer were fabricated by
die-pressing and reaction bonding. The effects of the outer-layer compositions
on the densification behavior of three-layer composites were investigated. The
existence of residual stresses in the layers was verified using indentation
methods. Compa...
Chemical Durability of Waste Fluorescent Glass and Shell–Derived Glass-Ceramics
Tập 10 - Trang 37-42 - 2002
In order to obtain glass-ceramics reinforced by β-wollastonite, pressed
specimens prepared by powdered waste fluorescent glass and refuse shell dumped
in the seashore were heat-treated at 800°C, 900°C, and 1000°C. Chemical
stability of the heat-treated specimens was analyzed by weight changes and by
observation of surface morphology and composition, by field-emission scanning
electron microscopy a...
Optimization of the LENS Rapid Fabrication Process for In-Flight Melting of Feed Powder
Tập 9 - Trang 223-233 - 2001
A model for in-flight melting of feed-powder particles propelled through a laser
beam in the Laser-Engineered Net Shaping (LENS) process has been developed. The
model is next incorporated in an optimization analysis to determine optimum LENS
process parameters (laser power, particle velocity, and the angle between the
laser-beam axis and particle trajectory), which maximize the probability for
in-...
Effects of Nanocrystalline Powders Additions on the Characteristics of Combustion Process, Phase- and Structure-Formation, and Properties of SHS Alloys on Titanium Carbide Base
Tập 10 - Trang 231-236 - 2002
A study was made of the effect of different nanocrystalline powders additives on
the macrokinetics of combusting Ti-Cr-C-Ni mixtures as well as on the
composition, structure, and physical-mechanical properties of SHIM-SB alloy
produced by the power SHS-compaction technique. An additive of nanocrystalline
powder is found to result in 2- to 5-fold modification of alloy structure and,
in most cases, ...
Fabrication of Intermetallic Compounds by Spark Plasma Sintering
Tập 7 - Trang 303-309 - 1999
The characteristics of spark plasma sintering, a new method of powder
processing, were investigated. Four systems of intermetallic compounds—Ti-Al,
Ti-Al-Cr, Mo-Si, and Mo-Si-Nb—were fabricated, and the formation process of
compounds, the formed phases, and the microstructure of samples were observed.
During the sintering of all the compositions of mixed powders, most of the
compounds were formed ...