scholarly journals Inherent heating instability of direct microwave sintering process: Sample analysis for porous 3Y-ZrO2

2017 ◽  
Vol 128 ◽  
pp. 49-52 ◽  
Author(s):  
Charles Manière ◽  
Tony Zahrah ◽  
Eugene A. Olevsky
Keyword(s):  
Microwave Sintering ◽  
Sintering Process ◽  
Sample Analysis

scholarly journals Microwave Sintering and Microwave Dielectric Properties of (1–x)Ca0.61La0.26TiO3-xNd(Mg0.5Ti0.5)O3 Ceramics

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 438
Author(s):  
Shuwei Yang ◽  
Bingliang Liang ◽  
Changhong Liu ◽  
Jin Liu ◽  
Caisheng Fang ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Mobile Communications ◽  
Sintering Temperature ◽  
Microwave Sintering ◽  
Microwave Dielectric Properties ◽  
Conventional Heating ◽  
Sintering Process ◽  
Microwave Dielectric ◽  
Sintering Time ◽  
Frequency Temperature

The (1–x)Ca0.61La0.26TiO3-xNd(Mg0.5Ti0.5)O3 [(1–x)CLT-xNMT, x = 0.35~0.60] ceramics were prepared via microwave sintering. The effects of sintering temperature and composition on the phase formation, microstructure, and microwave dielectric properties were investigated. The results show that the microwave sintering process requires a lower sintering temperature and shorter sintering time of (1–x)CLT-xNMT ceramics than conventional heating methods. All of the (1–x)CLT-xNMT ceramics possess a single perovskite structure. With the increase of x, the dielectric constant (ε) shows a downward trend; the quality factor (Qf) drops first and then rises significantly; the resonance frequency temperature coefficient (τf) keeps decreasing. With excellent microwave dielectric properties (ε = 51.3, Qf = 13,852 GHz, τf = −1.9 × 10−6/°C), the 0.65CLT-0.35NMT ceramic can be applied to the field of mobile communications.

scholarly journals The viability of microwave sintering process to produce a ceramic tool insert

2016 ◽  
Vol 13 (2) ◽  
pp. 3462-3475
Author(s):  
S.H. Thauri ◽  
◽  
B.T.H.T Baharudin ◽  
Z. Leman ◽  
S.M Tahir ◽  
...  
Keyword(s):  
Microwave Sintering ◽  
Sintering Process ◽  
Ceramic Tool ◽  
Tool Insert

Structural and dielectric properties of (1-x)MgTiO3-xBa5Nb4O15 composites by microwave sintering process

2017 ◽  
Vol 519 (1) ◽  
pp. 145-151 ◽  
Author(s):  
Susmita Rabha ◽  
Anil Kumar Chikkala ◽  
Pamu Dobbidi
Keyword(s):  
Dielectric Properties ◽  
Microwave Sintering ◽  
Sintering Process

Surface Dissolution of Hydroxyapatite Prepared by Microwave Sintering

2007 ◽  
Vol 330-332 ◽  
pp. 227-230
Author(s):  
Dong Seok Seo ◽  
Hwan Kim ◽  
Kyu Hong Hwang ◽  
Jong Kook Lee
Keyword(s):  
Grain Size ◽  
Grain Boundary ◽  
Heating Rate ◽  
Microwave Sintering ◽  
Starting Material ◽  
Dissolution Behavior ◽  
Distilled Water ◽  
Sintering Process ◽  
Conventional Sintering ◽  
Boundary Dissolution

The aim of this study was to prepare dense hydroxyapatite (HA) by microwave sintering and to evaluate the dissolution behavior in distilled water. Commercially-obtained HA powders having Ca/P ratio of 1.67 were used as a starting material. The as-received powder of granular type consists of nano-sized particles. Microwave sintering was operated at 1200°C for 5 min with a heating rate of 50°C/min. Microwave sintering process reduced grain size of HA, compared with the case of conventional sintering. During the immersion in distilled water for 3-14 days, grain boundary dissolution occurred and the dissolution extended into the bulk following this path. As a result, particles were separated from the structure leaving micron-scale defects.

scholarly journals Discussion on the Local Magnetic Force between Reversely Magnetized Micro Metal Particles in the Microwave Sintering Process

Metals ◽  
2017 ◽  
Vol 7 (2) ◽  
pp. 47 ◽  
Author(s):  
Yu Xiao ◽  
Feng Xu ◽  
Bo Dong ◽  
Wenchao Liu ◽  
Xiaofang Hu
Keyword(s):  
Magnetic Force ◽  
Microwave Sintering ◽  
Metal Particles ◽  
Sintering Process

scholarly journals The Study of Microwave and Electric Hybrid Sintering Process of AZO Target

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Ling-yun Han ◽  
Yong-chun Shu ◽  
Yang Liu ◽  
Lu Gao ◽  
Qing-tong Wang ◽  
...  
Keyword(s):  
Microwave Sintering ◽  
3D Modelling ◽  
Oxide Ceramic ◽  
Sintering Process ◽  
High Quality ◽  
Heating Method ◽  
Large Size ◽  
Doped Zno ◽  
Microwave Assistance ◽  
Ceramic Targets

We simulated the microwave sintering of ZnO by 3D modelling. A large-size Al-doped ZnO (AZO) green ceramic compact was prepared by slurry casting. Through studying the microwave and electric hybrid sintering of the green compact, a relative density of up to 98.1% could be obtained by starting microwave heating at 1200°C and increasing the power 20 min later to 4 kW for an AZO ceramic target measuring 120 × 240 × 12 mm. The resistivity of AZO targets sintered with microwave assistance was investigated. The energy consumption of sintering could be greatly reduced by this heating method. Until now, few studies have been reported on the microwave and electric hybrid sintering of large-size AZO ceramic targets. This research can aid in developing sintering technology for large-size high-quality oxide ceramic targets.

Electrical Properties of ZnO Varistors Prepared by Microwave Sintering Process

1996 ◽  
Vol 35 (Part 1, No. 9A) ◽  
pp. 4696-4703 ◽  
Author(s):  
Chang-Shun Chen ◽  
Cheng-Tzu Kuo ◽  
I-Nan Lin
Keyword(s):  
Electrical Properties ◽  
Microwave Sintering ◽  
Sintering Process ◽  
Zno Varistors
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