News

News

Industry News| Progress With Metal-ceramic Composites

Date: 2018-12-17
Views: 179

Researchers at Osaka University have developed a method for manufacturing composites of alumina ceramics and titanium.

Various types of metal-ceramic composite have been researched and developed, the researchers say, but their combination and fine structures have been limited. In particular, the combination of ceramics such as alumina used as matrices and titanium – a biocompatible metal – has proved problematic, in that the structure of the composites achieved has not been uniform. This is due to the high reactivity of titanium – oxidation happens and chemical compounds are produced – and the large particle size of commercially-available titanium powders, of several tens of micrometres.

Industry News| Progress With Metal-ceramic Composites


In order to fully exploit the advantages of both ceramics and metal in composites, the Osaka team has designed a percolation structure for forming a continuous conduction pathway by dispersing fine-sized titanium particles into an alumina matrix, optimising the particle size of the metallic titanium powder and sintering processes. The result is said to be improved fracture toughness and electrical conductivity, while simultaneously providing the composites with photocatalytic ability through chemical and/or thermal treatment.

The researchers have also demonstrated that, while ceramics are not electrically conductive, the composites can be machined by electrical discharge machining like metals.

They could also be used for industrial products and biomaterials as new multi-functional composites that have an active surface layer with antibacterial properties and a photocatalytic ability to break down pollutants.


Via: https://www.insidecomposites.com/progress-with-metalceramic-composites/


News / Recommended news More
2020 - 07 - 22
Desktop 3D printers are immensely useful in a machine shop, but can emit volatile organic compounds (VOCs) and ultrafine particles (UFPs) that are harmful to humans. Here are some guidelines to install and operate them safely. When I began reporting on additive manufacturing (AM) just five years ago, I quickly learned about the dangers of metal 3D printing, from the combustible materials to t...
2020 - 07 - 22
Often the demands of modern manufacturing mean that individual parts and prototypes have to be produced practically overnight.Additive manufacturing (AM) allows us to meet these demands with almost no limitations on geometry and material selection. The benefits of AM have never been more essential than they are now. As industries move to respond rapidly to the dangers and challenges presented...
2020 - 07 - 16
PM China & CCEC China & IACE China 2020 gathers nearly 500 exhibitors under one roof to showcase advanced technologies, equipments and high-quality products such as high-performance materials, advanced ceramics products, new molding and processing technology, manufacturing technology of high precision parts, intelligent manufacturing technology and 3D printing technology.Acquiring latest i...
2020 - 07 - 09
Success and growth depend on constant innovation to stay ahead of the competition. In fact, we found that ten times more is spent on R&D than on advertising around the world today. But for many traditional manufacturers, adopting digital technology in their workflows can still be seen as an insurmountable challenge, with major financial implications that are not always realistic, leaving them ...
Share:
Uniris Exhibition Shanghai Co., Ltd.
Shanghai Branch 
Tel: 4000 778 909 
E-mail:irisexpo@163.com
Guangzhou Branch
Tel:020-8327 6389
Email:pmchina@unifair.com
PM CHINA Official Website
犀牛云提供企业云服务
Scan the QR code to visit the official website by phone