Results 21 to 30 of about 3,746 (220)

Temperature and Pressure Wireless Ceramic Sensor (Distance = 0.5 Meter) for Extreme Environment Applications

Sensors, 2021
This paper presents a design for temperature and pressure wireless sensors made of polymer-derived ceramics for extreme environment applications. The wireless sensors were designed and fabricated with conductive carbon paste on an 18.24 mm diameter with ...
Justin Daniel, Spencer Nguyen, Md Atiqur Rahman Chowdhury, Shaofan Xu, Chengying Xu   +4 more
doaj   +1 more source

High Thermal Conductivity of Silicon Nitride Ceramics: A Review

KONA Powder and Particle Journal
Silicon-nitride ceramic substrates exhibit high thermal conductivity, high electrical insulation, high mechanical strength, low expansion. The Cu-clad ceramic substrate is the key material for the encapsulation of insulated gate bipolar transistor ...
Yusen Duan, Yanyu Ye, Ning Liu, Wenyu Tang, Hu Ruan, Jingxian Zhang   +5 more
doaj   +1 more source

氮硅涂层陶瓷刀具切削铸铁磨损机理研究

Jixie qiangdu, 2021
In order to study the cutting performance and wear mechanism of nitrogen-silicon coated ceramic tools,TiAlN and CrAlN coatings were deposited on the surface of silicon nitride tool by physical vapor deposition（ PVD）.The tool life and wear mechanism were ...
阮铭业, 张建, 彭晓君, 朱先勇
doaj  

Effects of Grinding Parameters on the Processing Temperature, Crack Propagation and Residual Stress in Silicon Nitride Ceramics

Micromachines, 2023
The surface/subsurface damage of engineering ceramics after machining has a great influence on the service performance of parts. In order to obtain a high grinding surface quality of engineering ceramics, and take silicon nitride ceramic as a research ...
Haipeng Yan, Fei Deng, Zhiying Qin, Jinda Zhu, Hongjie Chang, Huli Niu   +5 more
doaj   +1 more source

3D printing of porous Si2N2O ceramics based on strengthened green bodies fabricated via strong colloidal gel

Materials & Design, 2020
A convenient direct ink writing porous ceramic preparation strategy incorporating green body strengthening measure was provided. Different hydrogen bond interactions between particles in polar and nonpolar solvents have been successfully applied to ...
Haize Jin, Zhihua Yang, Delong Cai, Dechang Jia, Yu Zhou   +4 more
doaj   +1 more source

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

Fenmo 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, WU Haoyang, JIA Baorui, ZHANG Yiming, ZHANG Zhirui, LIU Chang, TIAN Jianjun, QIN Mingli   +7 more
doaj   +1 more source

Influence of Diamond Wire Saw Processing Parameters on the Sawn Surface Characteristics of Silicon Nitride Ceramics

Micromachines, 2023
For the slicing of superhard silicon nitride ceramics, diamond wire sawing technology has great potential for application, and its slicing surface characteristics are an important indicator of cutting quality.
Siyuan Zhang, Yufei Gao, Xingchun Zhang, Yufeng Guo   +3 more
doaj   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Laser-Induced Graphene/h-BN Laminated Structure to Enhance the Self-Lubricating Property of Si₃N₄ Composite Ceramic

Lubricants
Incorporating graphene as ceramic additives can significantly enhance both the toughness and self-lubricating characteristics of ceramic matrices. However, due to the difficult dispersion and easy agglomeration of graphene, the preparation process of ...
Wei Li, Jinzhi Dong, Dalong Xu, Yifan Dong, Sikandar Iqbal, Jingwei Li, Ting Luo, Bingqiang Cao   +7 more
doaj   +1 more source

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

Advanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau, Christian N. Saggau, Stefan Baunack, Thomas Gemming, Yara Abdelaal, Robert Weser, Oliver G. Schmidt, Hagen Schmidt, Andreas Winkler, Mariana Medina‐Sánchez   +9 more
wiley   +1 more source