Glass-ceramic composites for high-power white-light-emitting diodes

2021 ◽  
Author(s):  
Alessandro Longato ◽  
Sebastiano Picco ◽  
Lorenzo Moro ◽  
Matteo Buffolo ◽  
Carlo De Santi ◽  
...  
Keyword(s):  
White Light ◽  
High Power ◽  
Glass Ceramic ◽  
Light Emitting Diodes ◽  
Ceramic Composites ◽  
Light Emitting ◽  
White Light Emitting Diodes

Development in Phosphor Glass Ceramic Composites

2014 ◽  
Vol 61 (26) ◽  
pp. 31-36 ◽  
Author(s):  
Y.-R. Chung ◽  
C.-K. Chang ◽  
J.-H. Liao ◽  
F.-B. Wu
Keyword(s):  
Glass Ceramic ◽  
Ceramic Composites

Structural and Mechanical Properties of Bioactive Glass–Ceramic Composites

2016 ◽  
Vol 55 (3-4) ◽  
pp. 172-184 ◽  
Author(s):  
O. R. Parkhomei ◽  
N. D. Pinchuk ◽  
O. E. Sych ◽  
T. V. Tomila ◽  
G. B. Tovstonog ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Bioactive Glass ◽  
Glass Ceramic ◽  
Ceramic Composites

Microstructure and Properties of Calcium Borosilicate and Borosilicate Glass-Ceramic Composites

2008 ◽  
Vol 368-372 ◽  
pp. 1422-1425 ◽  
Author(s):  
An Guo Lu ◽  
Tai Qiu
Keyword(s):  
Borosilicate Glass ◽  
Glass Ceramic ◽  
Mass Fraction ◽  
Sintering Temperature ◽  
Coefficient Of Thermal Expansion ◽  
Ceramic Composites ◽  
Glass Content ◽  
Microstructure And Properties ◽  
Calcium Borosilicate ◽  
Crystal Phases

Calcium borosilicate (CaO-B2O3-SiO2, CBS) glass based glass-ceramic composites were prepared by introducing borosilicate glass. The effects of borosilicate glass and firing temperature on the microstructure and properties of the glass-ceramic composites were investigated. The results showed that the composites containing 0~40% (in mass fraction, the same below) borosilicate glass can be sintered at 850°C. The dielectric constant (εr) decreases with the increase of borosilicate glass content and can be adjusted in the range of 5.6~6.6. The coefficient of thermal expansion (CTE) increases with the increase of borosilicate glass content. Increasing sintering temperature favors the precipitations of crystal phases, which have lower εr than CBS glass, resulting in the decrease of εr for the composites.

scholarly journals Preparation of Apatite-Wollastonite-Phlogopite glass-ceramic composites by powder sintering method

2013 ◽  
Vol 45 (3) ◽  
pp. 331-339
Author(s):  
A. Faeghi-Nia
Keyword(s):  
Activation Energy ◽  
Particle Size ◽  
Glass Ceramic ◽  
Ceramic Composite ◽  
Ceramic Composites ◽  
Powder Sintering ◽  
Powdered Glass ◽  
Activation Energy Of Sintering ◽  
Sintering Method ◽  
Glass Ceramic Composite

An Apatite-Wollastonite-Phlogopite glass-ceramic composite, was developed by sintering and crystallization of the powdered glass. The non-isothermal and isothermal sintering kinetics were studied for this glass-ceramic. Hot-stage microscopy (HSM) measurements demonstrated that it is possible to sinter and crystallize this glass-ceramic with 80% relative density. The activation energy of sintering was analyzed using previously reported model of sintering and it was obtained Q=193.83 KjmolK-1. Also it was shown that the microstructure of sample is a function of particle size distribution.

scholarly journals Progressive Damage in Unidirectional Ceramic Composites Under Transient Thermal Fatigue

1991 ◽  
Author(s):  
A. Sinha ◽  
K. Kokini ◽  
K. J. Bowman
Keyword(s):  
Thermal Fatigue ◽  
Ceramic Composites ◽  
Ultrasonic Pulse ◽  
Unidirectional Composite ◽  
Progressive Damage ◽  
Cyclic Heating ◽  
Heating And Cooling ◽  
Stiffness Properties ◽  
Transient Thermal ◽  
Pulse Echo

The changes in stiffness properties for a CAS matrix-Nicalon fiber unidirectional composite resulting from cyclic heating and cooling are presented. The measurements are made using an ultrasonic pulse-echo technique. It is shown that a significant decrease in stiffness is observed after 30 cycles.

scholarly journals INTERFACES IN SiC FIBER-REINFORCED GLASS-CERAMIC COMPOSITES

1990 ◽  
Vol 51 (C1) ◽  
pp. C1-879-C1-883
Author(s):  
L. MAZEROLLES ◽  
D. MICHEL ◽  
L. ULMER ◽  
J. L. PASTOL ◽  
M. PARLIER ◽  
...  
Keyword(s):  
Glass Ceramic ◽  
Ceramic Composites ◽  
Fiber Reinforced ◽  
Sic Fiber

Glass-Ceramic Composites from Borosilicate Glass and Alumina-Rich Residues

2013 ◽  
Vol 12 ◽  
pp. E19-E27 ◽  
Author(s):  
Rama Krishna Chinnam ◽  
Aldo R. Boccaccini ◽  
Enrico Bernardo ◽  
Howard Epstein
Keyword(s):  
Borosilicate Glass ◽  
Glass Ceramic ◽  
Ceramic Composites
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