Results 11 to 20 of about 5,876 (143)

Experimental research on dynamic thermal performance of silicon nitride all-ceramic ball bearings

open access: yesIOP Conference Series: Materials Science and Engineering, 2021
Abstract In order to verify that the silicon nitride all-ceramic ball bearings have more excellent high-speed performance, thermal rise and vibration are the two main factors that restrict the bearing to move at high speed. In this manuscript, based on the establishment of the mechanical model of bearings, the structural model of all ...
S H Li   +4 more
openaire   +1 more source

Application of Silicon Nitride (Si3N4) Ceramics in Ball Bearing

open access: yesMedia Mesin: Majalah Teknik Mesin, 2016
This paper is discus about silicon nitride ceramics in application to ball bearing. Silicon nitride (Si3N4) have advance properties such as consistent at temperatureoperation up to 1000°C, greater thermal shock resistance, lower density and low thermal expansion. This properties gives some benefit for ball bearing material such as higher running speed,
openaire   +3 more sources

A fast detection algorithm for ceramic ball surface defectsbased on fringe reflection

open access: yesJournal of Measurement Science and Instrumentation, 2020
A ceramic ball is a basic part widely used in precision bearings. There is no perfect testing equipment for ceramic ball surface defects at present. A fast visual detection algorithm for ceramic ball surface defects based on fringe reflection is designed.
SUN Ying, FU Lu-hua, WANG Zhong
doaj  

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced 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   +7 more
wiley   +1 more source

Hybrid Amyloid–Boron Nitride Aerogels for Lightweight Sound Insulation

open access: yesAdvanced Materials, EarlyView.
Amyloid fibrils template the mild formation of boron nitride–rich hybrid aerogels with hierarchical porosity, enhanced BN‐like ordering, and fibril‐reinforced mechanics. These ultralight materials combine thermal stability with strong sound absorption and transmission loss, offering a sustainable bio‐assisted route toward lightweight acoustic shields ...
Mohammad Peydayesh   +8 more
wiley   +1 more source

Advanced Manufacturing of Composite‐Based Systems for Energy Applications

open access: yesAdvanced Materials Technologies, EarlyView.
Advanced manufacturing enables the integration of polymers, ceramics, metal oxides, and composites into architected microstructures with tailored transport pathways. By coupling material selection, manufacturing strategy, and structural design, multifunctional energy systems can simultaneously improve electrochemical performance, thermal management ...
Sri Vaishnavi Thummalapalli   +13 more
wiley   +1 more source

Silicon nitride-based ceramic composite materials for corrosion-resistant rolling bearings

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
The technological process of obtaining material and manufacturing ceramic rolling elements of the bearing is considered. The composition of a silicon nitride-based ceramic composite material was investigated.
S. Pakhomova, A. I. Povalyayev
semanticscholar   +1 more source

Fundamentals of Thermal Transport and Energy Conversion in Ultra‐High Temperature Ceramics: From Microscale Mechanisms to Macroscopic Properties

open access: yesAdvanced Science, EarlyView.
This review critically examines thermal transport and radiative properties of ultra‐high temperature ceramics for hypersonic flight, advanced nuclear systems, and next‐generation energy conversion devices. It explores phonon–photon–electron interactions, microstructural engineering, thermoelectric conversion, and machine learning‐accelerated multiscale
Zhipeng Pei   +8 more
wiley   +1 more source

Bridged h‐BN Nanosheets Coatings: Simultaneous Shielding Atomic‐Oxygen Irradiation and Achieving Superior Friction Performance

open access: yesAdvanced Science, EarlyView.
ABSTRACT To confront extreme space environments, a combination of inorganic and organic coatings can provide a pathway for offering highly durable radiation resistance and anti‐friction simultaneously. Herein, a strong interfacial 3D hydrogen‐bonding network is designed to create robust hexagonal boron nitride (h‐BN) based polymer coatings with ...
Zhuoyi Li   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy