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...
Synthesis and Densification of Nanomaterials by Mechanical and Field Activation
Tập 8 - Trang 189-196 - 2000
The use of mechanical and electric field activation to simultaneously synthesize
and densify nanomaterials was investigated. Dense nanostructured MoSi2 and
TiN-TiB2 nanocomposites were made by this method. The role of the parameters of
mechanical activation (milling) and those of field activation on the process of
formation of dense nanomaterials was studied. For the TiN–TiB2 system, up to
97.2% d...
Synthesis of TiC Whiskers through Carbothermal Reduction of TiO2
Tập 9 - Trang 1-10 - 2001
TiC whiskers were produced through carbothermal reduction of TiO2 in the
presence of potassium (K2CO3) and nickel (NiCl2). The effect of potassium,
nickel, and heating rate on the formation of whiskers was studied. Potassium was
found to be an essential constituent for whisker formation. Nickel acts as a
catalyst for TiC whisker formation only in the presence of potassium. The yield
of whiskers wa...
Synthesis of Ca–Mg Apatite via a Mechanochemical Hydrothermal Process
Tập 8 - Trang 305-311 - 2000
Mixtures of calcium and magnesium hydroxides and calcium dihydrogenphosphate in
various molar ratios were ground in water with a fine grinding machine, which
features multiring grinding media. Mechanochemical amorphization of the mixtures
occurs quickly by grinding. The mixtures, after grinding for 5, 20, and 60 min,
were then subjected to hydrothermal treatment at 573 K for 24 h. The influence
of...