Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Perovskites can improve fabrication of ceramic electronics


Scientists in Japan are finding that perovskites have the potential to improve the fabrication of electrodes and wiring in ceramic-based electronics such as spark plugs.

Many ceramic-based electronics, such as spark plugs and multilayer ceramic capacitors (found in consumer electronics, mobile phones, DVDs and video cameras, for example), are composed of a combination of oxides and metals.

Crystal structure of LaCo0.5Ni0.5O3 based on a rhombhedral lattice.

Copyright : STAM

The oxides are used as a base to provide the product’s electric, optical or magnetic properties, while the metals are used in electrodes, which propagate the electrical signals. Fabricating these products is difficult because the physical properties of the oxides and metals are very different.

To achieve a high quality product, the manufacturing process needs to account for differences in synthesis temperatures and atmospheres, and for differences in expansion and shrinkage. A fabrication process that is optimized for the conducting metal electrodes can suppress the performance of the base oxides.

In a review paper published in the journal Science and Technology of Advanced Materials, a group of scientists in Japan investigated the potential of replacing metal electrodes in ceramic-based electronics with conductive oxides. Doing so could allow for more innovations in the ceramics industry.

Oxide electrodes in these ceramic-based products would need to be highly conductive (above 1000 Siemens/cm) and stable in air at temperatures ranging between room temperature and 1173 Kelvin (almost 900° Celsius).

The team of researchers, from NGK Spark Plug Company and Nagoya University, fabricated oxides that have the potential to replace metal electrodes and investigated their physical properties above room temperature. Lanthanum-based perovskite-type oxides were chosen as having a potential for industrial use because they do not contain expensive rare metals, they are not environmentally hazardous, and they are stable in air up to 1173 Kelvin.

Based on their investigations, the team found that the lanthanum-based perovskite-type oxide LaCo0.5Ni 0.5O3 showed high electronic conduction at high temperatures in air and was suitable for the fabrication of oxide electrodes and wiring in ceramic-based products.

For further information contact:
Dr. Hisashi Kozuka
NGK Spark Plug Co., Ltd.
2808, Iwasaki, Komaki-shi
Aichi 485-8510, Japan
Tel: +81-568-76-1362

Journal Information
Science and Technology of Advanced Materials (STAM) is the leading open access, international journal for outstanding research articles across all aspects of materials science. Our audience is the international materials community across the disciplines of materials science, physics, chemistry, biology as well as engineering.

The journal covers a broad spectrum of materials science research including functional materials, synthesis and processing, theoretical analyses, characterization and properties of materials. Emphasis is placed on the interdisciplinary nature of materials science and issues at the forefront of the field, such as energy and environmental issues, as well as medical and bioengineering applications

For more information about the journal Science and Technology of Advanced Materials, please contact

Mikiko Tanifuji
Publishing Director
Science and Technology of Advanced Materials

Associated links
Read the paper here

Journal information

Sci. Technol. Adv. Mater. Vol. 16 (2015) 026001
Electronic conduction in La-based perovskite-type oxides
Hisashi Kozuka, Kazushige Ohbayashi, and Kunihito Koumoto

Mikiko Tanifuji | ResearchSEA
Further information:

More articles from Materials Sciences:

nachricht Study explains strength gap between graphene, carbon fiber
20.10.2016 | Rice University

nachricht Scientists develop a semiconductor nanocomposite material that moves in response to light
18.10.2016 | Worcester Polytechnic Institute

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

Im Focus: New Products - Highlights of COMPAMED 2016

COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.

In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...

Im Focus: Ultra-thin ferroelectric material for next-generation electronics

'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.

Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Innovative technique for shaping light could solve bandwidth crunch

20.10.2016 | Physics and Astronomy

Finding the lightest superdeformed triaxial atomic nucleus

20.10.2016 | Physics and Astronomy

NASA's MAVEN mission observes ups and downs of water escape from Mars

20.10.2016 | Physics and Astronomy

More VideoLinks >>>