Microwave heating of soda-lime glass by addition of iron powder

2008 ◽  
Vol 23 (6) ◽  
pp. 1564-1569 ◽  
Author(s):  
Noboru Yoshikawa ◽  
Haichuan Wang ◽  
Ken-ichi Mashiko ◽  
Shoji Taniguchi
Keyword(s):  
Iron Powder ◽  
Volume Fraction ◽  
Experimental Studies ◽  
Single Mode ◽  
Soda Lime ◽  
Glass Beads ◽  
Soda Lime Glass ◽  
Matrix Composites ◽  
Time Period ◽  
Glass Matrix Composites

Experimental studies were conducted to investigate the microwave (MW) heating behavior of soda-lime glass beads with added iron powder. These studies were intended to obtain fundamental knowledge for vitrification solidification and for the fabrication of metal-reinforced glass-matrix composites. The glass beads (0.2 mm diameter) did not heat very well by themselves at temperatures greater than 200 °C within 600 s in a multimode applicator at a power of 0.67 W. The addition of iron powder (average 70 μm, volume fraction 18%) made it possible to heat the glass beads above 700 °C within 60 s. At lower fractions of 3–11 vol%, however, a sudden temperature rise [thermal runaway (TRW)] occurred after the incubation time period. A single-mode MW applicator was used for clarifying the electric (E)-field and magnetic (H)-field contributions to the heating of each material and their mixtures. The results of this study demonstrated that the H-field contributed to the heating of the iron and then triggered the heating of the glass. The E-field component is necessary for heating the glass to a temperature higher than 800 °C. The factors determining the threshold values of the volume fraction causing TRW are discussed.

scholarly journals Low-loss single-mode integrated waveguides in soda-lime glass

2016 ◽  
Vol 122 (9) ◽  
Author(s):  
I. V. Dyakonov ◽  
A. A. Kalinkin ◽  
M. Yu. Saygin ◽  
A. G. Abroskin ◽  
I. V. Radchenko ◽  
...  
Keyword(s):  
Single Mode ◽  
Soda Lime ◽  
Soda Lime Glass ◽  
Low Loss

Effect of Thermal Expansion Mismatch on Fiber Pull-out in Glass Matrix Composites

1988 ◽  
Vol 120 ◽  
Author(s):  
U. V. Deshmukh ◽  
A. Kanei ◽  
S. W. Freiman ◽  
D. C. Cranmer
Keyword(s):  
Thermal Expansion ◽  
Silica Glass ◽  
Glass Matrix ◽  
Soda Lime ◽  
Matrix Composites ◽  
Thermal Expansion Mismatch ◽  
Pull Out ◽  
Soda Lime Silica Glass ◽  
Fiber Matrix ◽  
Glass Matrix Composites

AbstractSingle fiber pull-out tests can be used to directly measure the fiber-matrix interfacial shear stress in glass matrix composites. The system under investigation consisted of a soda-lime-silica glass matrix containing SiC monofilaments with a carbon-rich surface. The presence of the carbon-rich layer on the surface of these fibers makes them non-wetting to most glasses; hence the fibers are held in the matrix only by frictional forces acting at the interface. The mechanical gripping responsible for this force can be changed by manipulating the glass matrix/fiber thermal expansion coefficient mismatch. Frictional stresses (τ) and friction coefficients (μ) obtained for SiC monofilaments in a soda-lime-silica glass matrix were compared with previously obtained data on a borosilicate glass matrix (τ = 2–3 MPa, μ = 0.72 ± 0.36). For the soda-lime-silica system, τ's of 4–20 MPa and μ of 0.10 ± 0.03 were obtained. τ in the soda-lime-silica system is higher due to the larger difference in thermal expansion mismatch between the fiber and matrix. The differences in μ may be due to lubrication effects caused by water at the fiber-matrix interface.

Asphalt-Aggregate Interactions Characterized by Zeta Potential and Retained Strength Measurements for Natural and Organosilane-Treated Aggregates

1996 ◽  
Vol 1535 (1) ◽  
pp. 111-116 ◽  
Author(s):  
Arnulf P. Hagen ◽  
William D. Lee ◽  
Tisha M. Jones
Keyword(s):  
Zeta Potential ◽  
Glass Bead ◽  
Soda Lime ◽  
Glass Beads ◽  
Asphalt Binders ◽  
Soda Lime Glass ◽  
Department Of Transportation ◽  
Zeta Potentials ◽  
The Poor ◽  
Oklahoma Department Of Transportation

Zeta potentials in water have been measured for a poorly performing, easily stripped hard limestone, a well-performing hard limestone, a sandstone, a rhyolite, soda lime glass beads, and for eight AC-20 asphalt binders. Four of the binders selected to represent a range of zeta potentials were combined with the sandstone, the limestones, and the glass beads according to Oklahoma Department of Transportation mix formulas and tested for retained strength. The good hard limestone was the best overall performer with retained strengths of 96 to 100 percent, the poor hard limestone was acceptable, overall the sandstone was unsatisfactory; and the glass beads did not survive the retained strength preconditioning procedure. The aggregates were then treated with organosilane derivatives to chemically modify their surfaces and to change the aggregate zeta potential. For example, the zeta potential of the poor hard limestone was made to be closer to that of the good hard limestone. The modified aggregates were then used in the same mix and the retained strengths measured. The good hard limestone mix exhibited no change in retained strength; however, the poor hard limestone, the sandstone, and the glass bead mixes gave excellent retained strengths.

Microwave-Induced Sintering of Cu-Based Metallic Glass Matrix Composites in a Single-Mode 915-MHz Applicator

2010 ◽  
Vol 42 (6) ◽  
pp. 1463-1467 ◽  
Author(s):  
Song Li ◽  
Guoqiang Xie ◽  
Dmitri V. Louzguine-Luzgin ◽  
Motoyasu Sato ◽  
Akihisa Inoue
Keyword(s):  
Metallic Glass ◽  
Glass Matrix ◽  
Single Mode ◽  
Matrix Composites ◽  
Glass Matrix Composites

Effects of Thermal Loading on Fiber-Reinforced Composites With Constituents of Differing Thermal Expansivities

1973 ◽  
Vol 95 (1) ◽  
pp. 55-62 ◽  
Author(s):  
C. A. Hoffman
Keyword(s):  
Thermal Loading ◽  
Volume Fraction ◽  
Fiber Composite ◽  
Large Strain ◽  
Experimental Studies ◽  
Matrix Composites ◽  
Fiber Reinforced ◽  
Tungsten Fiber ◽  
Elastic Plastic ◽  
Elastic Stresses

Estimates of the magnitudes of elastic stresses and elastic-plastic stresses and strains were made for tungsten fiber-reinforced 80Ni + 20Cr matrix composites; heating or cooling between 80 and 2000 deg F (26.5–1093.5 deg C) was assumed. The calculated elastic stresses exceeded representative or estimated strengths of constituents. For composites with less than 0.65 volume fraction of fiber, plastic flow was considered possible, and elastic-plastic solutions indicated that stresses would be reduced but with the concomitant occurrence of sufficiently large strain ranges, particularly in the matrix, to pose a possible thermal fatigue problem. Limited experimental studies on tungsten fiber-copper matrix composites heated and cooled a number of times between 80 deg F (26.5 deg C) and 1600 deg F (877 deg C) in a conventional furnace and then heated from 80 deg F (26.5 deg C) to 1652 deg F (900 deg C) in a hot stage microscope resulted in matrix microfracture for a 70 volume fraction fiber composite and substantial matrix strain for a 40 volume fraction fiber composite.

Synthesis of Ni-based bulk metallic glass matrix composites containing ductile brass phase by warm extrusion of gas atomized powders

2003 ◽  
Vol 18 (9) ◽  
pp. 2101-2108 ◽  
Author(s):  
M. H. Lee ◽  
D. H. Bae ◽  
D. H. Kim ◽  
D. J. Sordelet
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Glass Matrix ◽  
Volume Fraction ◽  
Shear Bands ◽  
Second Phase ◽  
Matrix Composites ◽  
Ductile Phase ◽  
Glass Matrix Composites ◽  
Warm Extrusion

To prevent catastrophic failure by propagating highly localized shear bands and to overcome the limited dimension of metallic glass, centimeter-scale Ni59Zr20Ti16Si2Sn3 bulk metallic glass matrix composites were fabricated by warm extrusion of a mixture of gas-atomized fully amorphous powders and ductile brass powders. After consolidation, the composite retained the fully amorphous matrix found in the gas-atomized powder combined with the brass second phase. The glass-transition and crystallization temperatures of the extruded material were the same as those of the starting powders. The confined ductile brass phase enabled the bulk metallic glass matrix composites to deform plastically under uniaxial compression at room temperature. The combination of strength and ductility in the inherently brittle Ni-based monolithic materials could be obtained by introducing a ductile phase in the bulk metallic glass matrix. However, control of the volume fraction and distribution of the ductile brass phase was important for the proper combination of the strength and plasticity.

scholarly journals Enhancement of plasticity in Ti-based metallic glass matrix composites by controlling characteristic and volume fraction of primary phase

2010 ◽  
Vol 25 (11) ◽  
pp. 2183-2191 ◽  
Author(s):  
K.R. Lim ◽  
J.H. Na ◽  
J.M. Park ◽  
W.T. Kim ◽  
D.H. Kim
Keyword(s):  
Metallic Glass ◽  
Glass Matrix ◽  
Volume Fraction ◽  
Design Procedure ◽  
Primary Phase ◽  
Metastable Equilibrium ◽  
Compressive Yield Strength ◽  
High Plasticity ◽  
Matrix Composites ◽  
Glass Matrix Composites

In this study, Ti-based metallic glass matrix composites with high plasticity have been developed by controlling characteristic and volume fraction of primary phase embedded in the glass matrix. By careful alloy design procedure, the compositions of β/glass phases, which are in metastable equilibrium have been properly selected, therefore the mechanical properties can be tailored by selecting the alloy compositions between the composition of β and glass phases. The relation between the compressive yield strength and volume fraction of β phase is well described using the rule of mixtures.

scholarly journals Finite Element Based Thermal Model For Analyzing The Material Removal of Different Work Material In ECDM Process

2021 ◽  
Author(s):  
Vivek Sharma
Keyword(s):  
Finite Element ◽  
Gaussian Distribution ◽  
Heat Input ◽  
Thermal Model ◽  
Material Removal ◽  
Experimental Studies ◽  
Electrochemical Machining ◽  
Soda Lime ◽  
Soda Lime Glass ◽  
Work Material

Abstract Electrochemical discharge machining (ECDM) is a novel technique for machining non-conductive materials like quartz, soda lime glass, ceramics etc. It combines the machining attributes of the electric discharge machining (EDM) and electrochemical machining (ECM) simultaneously in a single process. Despite numerous experimental studies, few studies are reported covering analytical aspects of the ECDM process. The present study focusses on the development of finite element based thermal model for analyzing the material removal of the different work materials. The model is validated by comparing it with existing literature and a comparison of the different models based on different heat input i.e., uniform distribution and Gaussian distribution is also performed. Results revealed that the material removal rate (MRR) predicted using Gaussian distribution exhibits fair agreement with the earlier reported results. Moreover, the comparative study on MRR is performed using gaussian heat distribution for soda lime glass and quartz material. It is observed that under similar machining conditions, MRR of soda lime glass is higher than the quartz material. The MRR of the both the work materials increases with the increase in electrolyte concentration due to increase in total heat input over the work material.

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