Millimeter-Wavelength Radiation Used to Sinter Radiotransparent MgAl2O4 Ceramics
Sign Up to like & getrecommendations! Published in 2017 at "Radiophysics and Quantum Electronics"
DOI: 10.1007/s11141-017-9736-8
Abstract: We have developed a method for production of high-density MgAl2O4 ceramics characterized by low dielectric losses. The method is based on sintering of ultrafine, high-purity powder materials in the electromagnetic field of intense microwave radiation.… read more here.
Keywords: mgal2o4 ceramics; millimeter wavelength; radiation; radiation used ... See more keywords
Effect of pretreated microstructure on subsequent sintering performance of MgAl2O4 ceramics
Sign Up to like & getrecommendations! Published in 2019 at "Ceramics International"
DOI: 10.1016/j.ceramint.2019.01.048
Abstract: Abstract Pore-grain boundary separation at the final stage of pressureless sintering was successfully suppressed via limiting grain growth in MgAl2O4 ceramics. A pretreatment process by spark plasma sintering (SPS) was utilized to obtain a homogeneous… read more here.
Keywords: grain growth; pressureless sintering; mgal2o4 ceramics; microstructure ... See more keywords
Highly porous and hierarchical MgAl2O4 ceramics with improved pore connectivity prepared from gelled particle-stabilized foams
Sign Up to like & getrecommendations! Published in 2019 at "Ceramics International"
DOI: 10.1016/j.ceramint.2019.05.310
Abstract: Abstract Ultralight ceramics with striking mechanical properties and improved pore connectivity could have wide applications in areas ranging from catalyst support to hot gas filtration. However, creating such materials has proven to be a challenging… read more here.
Keywords: improved pore; pore connectivity; particle stabilized; mgal2o4 ceramics ... See more keywords
Transparent MgAl2O4 ceramics prepared by microwave sintering and hot isostatic pressing
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DOI: 10.1016/j.ceramint.2020.07.051
Abstract: Abstract Transparent MgAl2O4 ceramics have been successfully fabricated by microwave sintering and hot isostatic pressing (HIP) from high purity spinel nanopowders. The influence of microwave sintering temperature on densification and microstructure was studied, choosing 1400 °C… read more here.
Keywords: microwave sintering; transparent mgal2o4; sintering hot; mgal2o4 ceramics ... See more keywords
Microwave dielectric properties and crystal structures of spinel-structured MgAl2O4 ceramics synthesized by a molten-salt method
Sign Up to like & getrecommendations! Published in 2017 at "Journal of The European Ceramic Society"
DOI: 10.1016/j.jeurceramsoc.2016.10.018
Abstract: Abstract The microwave dielectric properties and crystal structures of MgAl2O4 ceramics synthesized using either molten-salt (MA-M) or solid-state reaction (MA-S) methods were characterized in this study. Raman and 27Al solid-state nuclear magnetic resonance spectra indicated… read more here.
Keywords: mgal2o4 ceramics; ceramics synthesized; dielectric properties; crystal structures ... See more keywords
Acoustic Emission during Indentation into MgAl2O4 Ceramics
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DOI: 10.1134/s1087659620030037
Abstract: Time series of acoustic emission pulses are recorded when the surface of MgAl2O4 ceramics is damaged by the introduction of a Vickers pyramid. Based on the data of the frequency analysis of the emitted sound,… read more here.
Keywords: indentation mgal2o4; emission indentation; acoustic emission; mgal2o4 ceramics ... See more keywords
Fabrication and Characterization of Porous MgAl2O4 Ceramics via a Novel Aqueous Gel-Casting Process
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DOI: 10.3390/ma10121376
Abstract: A novel and aqueous gel-casting process has been successfully developed to fabricate porous MgAl2O4 ceramics by using hydratable alumina and MgO powders as raw materials and deionized water as hydration agent. The effects of different… read more here.
Keywords: mgal2o4 ceramics; gel casting; aqueous gel; porous mgal2o4 ... See more keywords