Results 31 to 40 of about 24,872 (164)

Experimental Studies on Mechanical Characterizations of Silicon Nitride and Alumina added Al7075 Hybrid Composite for Various Engineering Applications

open access: yesTehnički Glasnik
The present investigation is aimed at studying the influence of alumina and silicon nitride reinforcement particles in addition to the Al 7075 alloy on the hardness, wear, tensile, and impression creep behaviour.
T. Karuppusamy   +6 more
doaj   +1 more source

Direct Synthesis of α-Silicon Nitride Nanowires from Silicon Monoxide on Alumina

open access: yesNanomaterials and Nanotechnology, 2015
Silicon nitride nanowires were synthesized using silicon monoxide as raw materials and an alumina plate as substrate at 1500°C. The obtained nanowires were characterized by X-ray diffraction, Fourier transform infrared spectrosco‐ py, scanning electron ...
Jiang Cui   +4 more
doaj   +1 more source

Simulation of hybrid silicon nitride/polymer Mach-Zehnder optical modulator beyond 170 GHz

open access: yesFrontiers in Physics, 2022
In this paper, a hybrid Mach-Zehnder optical modulator is proposed based on silicon nitride/organic polymer waveguides, which is expected to break through the performance bottleneck of the silicon-based optical modulator by exploiting the low-loss ...
Beiju Huang   +8 more
doaj   +1 more source

Silicon Nitride Photonic Integration Platforms for Visible, Near-Infrared and Mid-Infrared Applications

open access: yesSensors, 2017
Silicon nitride photonics is on the rise owing to the broadband nature of the material, allowing applications of biophotonics, tele/datacom, optical signal processing and sensing, from visible, through near to mid-infrared wavelengths.
Pascual Muñoz   +13 more
doaj   +1 more source

Strength and Fatigue of Silicon Nitride/Silicon Nitride and Alumina/Alumina Joints

open access: yesJSME international journal. Ser. A, Mechanics and material engineering, 1994
To investigate the fatigue behavior of bonded ceramics, Si 3 N 4 /Si 3 N 4 and Al 2 O 3 /Al 2 O 3 joint specimens were three-point-fatigue-tested under static and cyclic loading at temperatures ranging from 300 to 1 038 K in air. Fractographic observation was also carried out using SEM after the fatigue test.
SASAKI, Kazunori   +2 more
openaire   +3 more sources

Micro-Hole Drilling on Silicon Nitride Ceramics in Ethanol

open access: yesTribology Online, 2009
Micro-hole drilling of engineering ceramics has potential for application to fuel injection nozzles and fiber spinning nozzles, etc. To date among engineering ceramics, less study has been reported on the micro-hole drilling of silicon nitride.
Tsuneaki Yamabe   +3 more
doaj   +1 more source

Research progress on sintering additive used for high thermal conductivity silicon nitride ceramics

open access: yesFenmo yejin jishu
Silicon nitride (Si3N4) is considered to be the best ceramic material for the comprehensive properties. High thermal conductivity and the excellent mechanical properties make it widely used as the ceramic substrate in electric vehicles and hybrid ...
WANG Yuelong   +7 more
doaj   +1 more source

Hydroxyapatite coating on silicon nitride surfaces using the biomimetic method

open access: yesMaterials Research, 2008
Silicon nitride based ceramics are promising candidates for biomedical applications due to their chemical and dimensional stability associated to suitable mechanical strength and relatively high fracture toughness.
Cecilia Chaves Guedes e Silva   +4 more
doaj   +1 more source

Microstructure of Spark Plasma-Sintered Silicon Nitride Ceramics

open access: yesNanoscale Research Letters, 2017
The microstructure and phase composition of the high-content Al2O3-Y2O3-doped spark plasma-sintered silicon nitride were investigated. Fully dense silicon nitride ceramics with a typical α-Si3N4 equiaxed structure with average grain size from 200 to 530 ...
O. A. Lukianova   +4 more
doaj   +1 more source

Preparation of porous silicon nitride ceramics by microwave sintering and its performance evaluation

open access: yesJournal of Materials Research and Technology, 2019
In this paper, the preparation methods of porous silicon nitride materials with controllable dielectric constant and pore structure were systematically studied.
XIAO Chun-fang, HAN Bing
doaj   +1 more source

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