All‐Inorganic Single‐Ion Magnets in Ceramic Matrices

2020 ◽  
Vol 26 (41) ◽  
pp. 8834-8844 ◽  
Author(s):  
Mikhail A. Zykin ◽  
Pavel E. Kazin ◽  
Martin Jansen
Keyword(s):  
Ceramic Matrices

Crystallization of MgO • Al2 • SiO2 • ZrO2 glasses

1986 ◽  
Vol 44 ◽  
pp. 440-441
Author(s):  
M. A. McCoy
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Powder Processing ◽  
Glass Composition ◽  
Ceramic Powder ◽  
Transformation Toughening ◽  
Ceramic Powder Processing ◽  
Processing Techniques ◽  
Ceramic Matrices

Transformation toughening by ZrO2 inclusions in various ceramic matrices has led to improved mechanical properties in these materials. Although the processing of these materials usually involves standard ceramic powder processing techniques, an alternate method of producing ZrO2 particles involves the devtrification of a ZrO2-containing glass. In this study the effects of glass composition (ZrO2 concentration) and heat treatment on the morphology of the crystallization products in a MgO•Al2•SiO2•ZrO2 glass was investigated.

Sol-Gel Synthesis, Thermal Behavior of Nanopowders and Chemical Stability of La1 – xHoxPO4 Ceramic Matrices

2018 ◽  
Vol 44 (5) ◽  
pp. 440-449 ◽  
Author(s):  
L. P. Mezentseva ◽  
A. V. Osipov ◽  
V. L. Ugolkov ◽  
A. A. Akatov ◽  
V. A. Doilnitsyn ◽  
...  
Keyword(s):  
Thermal Behavior ◽  
Chemical Stability ◽  
Sol Gel ◽  
Sol Gel Synthesis ◽  
Ceramic Matrices

Synthesis of nanopowders and physicochemical properties of ceramic matrices of the LaPO4–YPO4–(H2O) and LaPO4–HoPO4–(H2O) systems

2017 ◽  
Vol 90 (1) ◽  
pp. 28-33 ◽  
Author(s):  
V. L. Ugolkov ◽  
L. P. Mezentseva ◽  
A. V. Osipov ◽  
V. F. Popova ◽  
T. P. Maslennikova ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Ceramic Matrices

scholarly journals Customizable Ceramic Nanocomposites Using Carbon Nanotubes

Molecules ◽  
2019 ◽  
Vol 24 (17) ◽  
pp. 3176
Author(s):  
Chinyere Okolo ◽  
Rafaila Rafique ◽  
Sadia Sagar Iqbal ◽  
Tayyab Subhani ◽  
Mohd Shahneel Saharudin ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Substantial Reduction ◽  
Industrial Applications ◽  
Plasma Sintering ◽  
Electrical Conductivities ◽  
Spark Plasma ◽  
Novel Strategy ◽  
Further Development ◽  
Ceramic Matrices ◽  
Ceramic Nanocomposites

A novel tweakable nanocomposite was prepared by spark plasma sintering followed by systematic oxidation of carbon nanotube (CNT) molecules to produce alumina/carbon nanotube nanocomposites with surface porosities. The mechanical properties (flexural strength and fracture toughness), surface area, and electrical conductivities were characterized and compared. The nanocomposites were extensively analyzed by field emission scanning electron microscopy (FE-SEM) for 2D qualitative surface morphological analysis. Adding CNTs in ceramic matrices and then systematically oxidizing them, without substantial reduction in densification, induces significant capability to achieve desirable/application oriented balance between mechanical, electrical, and catalytic properties of these ceramic nanocomposites. This novel strategy, upon further development, opens new level of opportunities for real-world/industrial applications of these relatively novel engineering materials.

Application of Neutron Diffraction to Measure Residual Strains in Various Engineering Composite Materials

1991 ◽  
Vol 113 (1) ◽  
pp. 51-59 ◽  
Author(s):  
S. Majumdar ◽  
J. P. Singh ◽  
D. Kupperman ◽  
A. D. Krawitz
Keyword(s):  
Crystal Structure ◽  
Composite Materials ◽  
Neutron Diffraction ◽  
Measured Data ◽  
Unidirectional Fibers ◽  
Residual Strains ◽  
Neutron Diffraction Technique ◽  
Multiphase Composite ◽  
Oriented Single Crystal ◽  
Ceramic Matrices

An experimental neutron diffraction technique was used to measure residual strains that developed in multiphase composite materials during postfabrication cooling as a result of thermal expansion mismatch or volume expansion due to change in crystal structure. The reinforcement geometries that were studied include unidirectional fibers, randomly oriented single crystal whiskers, and equiaxed particles. Both metal and ceramic matrices and reinforcements were considered. In some cases, the measured data compared fairly well with predictions based on simple elastic models. In other cases, either creep was shown to relax the residual strains during cooling, or the interpretation of the measured data contained uncertainties due to texture in the samples or lack of a clearly defined crystal structure for the reinforcement phase.

scholarly journals Ceramic matrices for immobilization of heavy metals adsorbed on rice husk

2020 ◽  
Vol 2 (5) ◽  
Author(s):  
Melisa Romano ◽  
Gisela Pelozo ◽  
Nancy Quaranta ◽  
Valeria Corne ◽  
María del Carmen García
Keyword(s):  
Heavy Metals ◽  
Rice Husk ◽  
Ceramic Matrices
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