scholarly journals High-temperature Pressurized Sintering of Yttria-stabilized Tetragonal Zirconia Powder Compacts by 28-GHz Microwave Irradiation

2018 ◽  
Vol 65 (9) ◽  
pp. 566-571
Author(s):  
Kozaburo TAI ◽  
Tatsuo KUMAGAI
Keyword(s):  
High Temperature ◽  
Microwave Irradiation ◽  
Tetragonal Zirconia ◽  
Zirconia Powder ◽  
Powder Compacts

Sintering and microstructure of glass-coated nanocrystalline yttria-stabilized tetragonal zirconia powder: Effect of the glass

2001 ◽  
Vol 16 (1) ◽  
pp. 296-302 ◽  
Author(s):  
R. Ramamoorthy ◽  
R. Chaim
Keyword(s):  
Sol Gel ◽  
Tetragonal Zirconia ◽  
Yttria Stabilized Zirconia ◽  
Stabilized Zirconia ◽  
Zirconia Powder ◽  
Particle Aggregates ◽  
Fine Microstructure ◽  
Homogeneous Particle ◽  
Powder Compacts ◽  
Strontium Silicate

Nanocrystalline yttria-stabilized zirconia (nc-Y-TZP) powders coated with 10 vol% sodium strontium silicate glass were prepared by the sol-gel method. The glass is found to uniformly coat the zirconia particles or particle aggregates. The presence of the glass was found to enhance the densification of the powder compacts leading to 97% of the theoretical density compared to 90% in the pure nc-Y-TZP. It also resulted in a fine microstructure, homogeneous particle shape, and narrow size distribution. The polyhedral-shaped faceted grains in the sintered pure Y-TZP were converted to round-shaped grains in the glass containing specimens

High-temperature mechanical loss behaviour of 3 mol% yttria-stabilized tetragonal zirconia polycrystals (3Y-TZP)

2003 ◽  
Vol 195 (2) ◽  
pp. 293-304 ◽  
Author(s):  
M. Daraktchiev ◽  
R. Schaller
Keyword(s):  
High Temperature ◽  
Tetragonal Zirconia ◽  
Mechanical Loss

In Situ XRD Study of Zirconia Phase Transformation Produced from Chemical and Mineral Processes

2016 ◽  
Vol 840 ◽  
pp. 375-380
Author(s):  
Meor Yusoff Meor Sulaiman ◽  
Khaironie Mohamed Takip ◽  
Ahmad Khairulikram Zahari
Keyword(s):  
High Temperature ◽  
Heating Temperature ◽  
Tetragonal Zirconia ◽  
Amorphous Structure ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
Zirconyl Chloride ◽  
High Temperature Xrd ◽  
Temperature Phase Transition

The high temperature phase transition of zirconia produced from commercial zirconyl chloride chemical was compared with that produced from a Malaysian zircon mineral. Zirconyl chloride was produced from zircon by using the hydrothermal fusion method. Initial XRD diffractogram of these samples at room temperature show that they are of amorphous structure. High temperature XRD studies was then performed on these samples; heated up to 1500°C. The XRD diffractograms shows that the crystalline structure of tetragonal zirconia was first observed and the monoclinic zirconia becomes more visible at higher heating temperature.

ChemInform Abstract: High Temperature Zincation of Functionalized Aromatics and Heteroaromatics Using TMPZnCl·LiCl and Microwave Irradiation.

ChemInform ◽  
2010 ◽  
Vol 41 (7) ◽  
Author(s):  
Marc Mosrin ◽  
Gabriel Monzon ◽  
Tomke Bresser ◽  
Paul Knochel
Keyword(s):  
High Temperature ◽  
Microwave Irradiation

Raman spectra of tetragonal zirconia: powder to zircaloy oxide frequency shift

2001 ◽  
Vol 288 (2-3) ◽  
pp. 241-247 ◽  
Author(s):  
Pierre Barbéris ◽  
Gaëlle Corolleur-Thomas ◽  
René Guinebretière ◽  
Thérèse Merle-Mejean ◽  
Andrei Mirgorodsky ◽  
...  
Keyword(s):  
Frequency Shift ◽  
Raman Spectra ◽  
Tetragonal Zirconia ◽  
Zirconia Powder

Microstructure of selectively heated (hot spot) region in Fe3O4 powder compacts by microwave irradiation

2012 ◽  
Vol 32 (2) ◽  
pp. 419-424 ◽  
Author(s):  
Noboru Yoshikawa ◽  
Guoqiang Xie ◽  
Ziping Cao ◽  
Dmitri V. Louzguine
Keyword(s):  
Microwave Irradiation ◽  
Hot Spot ◽  
Powder Compacts

High temperature zincation of functionalized aromatics and heteroaromatics using TMPZnCl·LiCl and microwave irradiation

2009 ◽  
pp. 5615 ◽  
Author(s):  
Marc Mosrin ◽  
Gabriel Monzon ◽  
Tomke Bresser ◽  
Paul Knochel
Keyword(s):  
High Temperature ◽  
Microwave Irradiation

Effect of Sintering Temperature on the Mechanical Properties of Nanostructured Zirconia Fabricated via Colloidal Processing

2013 ◽  
Vol 686 ◽  
pp. 44-48 ◽  
Author(s):  
Noor Faeizah Amat ◽  
Andanastuti Muchtar ◽  
Norziha Yahaya ◽  
Mariyam Jameelah Ghazali
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Sintered Density ◽  
Sintering Temperature ◽  
Tetragonal Zirconia ◽  
Sintered Specimen ◽  
Full Density ◽  
Colloidal Processing ◽  
Zirconia Powder ◽  
Dental Ceramic

This study aims to evaluate the effects of sintering temperature on the density and hardness of tetragonal zirconia polycrystals stabilized with 3 mol% 3Y-TZP dental ceramic type. Five cylindrical specimens were fabricated from zirconia powder of particle size 50 nm via colloidal processing. The specimens were sintered densely at the final sintering temperatures of 1000, 1100, 1200, and 1300 °C, respectively. The sintered density and hardness of the sintered specimen were then examined. The results showed that the sintered densities and hardness of the specimen increased as the temperature increased from 1000 °C to 1300 °C. Zirconia 3Y-TZP could gain near full density and reach hardness of as high as 11.30 GPa at the final sintering temperature of 1300 °C. The density and hardness of zirconia structured from 3Y-TZP can be improved by controlling the final sintering temperature.

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