KYOCERA Develops World's First Platinum-Free Soot-Sensing Element for Diesel Engines
03 November 2015 - 12:07AM
Business Wire
Withstanding temperatures over 500°C, new
product to support emissions systems by continuously monitoring
soot filter performance
Kyocera Corporation (President: Goro Yamaguchi) today announced
that it has developed a sensing element to help monitor soot
filters in diesel-engine vehicles — the first ever*1 to withstand
operating temperatures above 500°C without the use of platinum.
Awarded in the Green Innovation*2 category at the CEATEC JAPAN 2015
tradeshow, the new product utilizes a new base-metal alloy to
withstand higher temperatures while reducing production costs and
helping to improve air pollution from engine emissions.
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World's first platinum-free soot-sensing
element (length: 67mm; width: 4mm; thickness: 1mm) for diesel
engines developed by Kyocera and a Japanese 100-yen coin (Photo:
Business Wire)
As environmental regulations grow more stringent, soot sensors
are expected to become necessary for monitoring diesel engine
emissions. Most sensing elements for soot sensors currently in
development by other companies utilize conductors made of platinum,
which can resist oxidation at high temperature. However, platinum
can cause catalytic reactions with soot — and at very high
temperatures, can even cause soot to burn. Kyocera has overcome
these problems by developing a new base-metal alloy to replace
platinum in its new element, which the company plans to further
develop, with samples available in January 2017.
Main Features
1. Withstanding operating temperatures over
500°C
As the world’s leading provider of ceramic microelectronic
packages (market share: approx. 70%), Kyocera has developed an
extensive portfolio of technologies relating to base-metal
conductors and ceramic metallization. By utilizing a conductor made
from a proprietary base-metal alloy instead of platinum, Kyocera
has developed a sensing element that can detect soot at high
operating temperatures. Even at extreme high temperatures,
significantly over 500°C, the sensing element can be used depending
on the specific application. Furthermore, with a durable structure
built by laminating and co-firing thin layers of ceramic with the
newly developed base-metal alloy, it is designed to offer maximum
long-term reliability.
2. Contributing to the reduction of air pollution from
engine emissions
Soot sensors are designed to measure the level of particulates
in diesel exhaust and detect cases in which soot emissions exceed
regulatory limits. By notifying the driver when the filter becomes
compromised, this sensing element can help reduce air pollution and
create a cleaner environment through practical application.
3. Reducing costs through material innovation
In addition to its high-temperature performance advantages, the
new sensing element reduces costs by replacing platinum, a precious
metal, with Kyocera’s proprietary base-metal alloy. Kyocera aims to
expand use of the newly developed material as an alternative to
platinum, for applications such as gas sensors and packaging of
high-temperature devices.
Development Background
Diesel engines generate less CO2 emissions than conventional gas
engines, while offering superior torque characteristics and
outstanding long-term durability. Due to these advantages, the use
of diesel-engine vehicles has experienced significant growth in
Europe, where its share among passenger cars exceeds 50 percent*3.
In addition to passenger cars, diesel engines are widely used
worldwide for various applications, for example in the United
States where diesel engines power more than two-thirds of all farm
equipment, three-fourths of heavy construction equipment, the
majority of freight trucks, and about 55 percent of school
buses*4.
Consequently, diesel emission regulations are growing more
stringent. European emissions standards already require pollution
control systems such as soot-collecting Diesel Particulate Filters
(DPFs) in diesel-engine vehicles. However, sensors for monitoring
filter performance are still under development by various companies
for practical application.
Future emission regulations are expected to mandate soot sensors
as an essential component of diesel engine vehicles. Kyocera
remains committed to utilizing its technology to address
environmental issues and will continually develop its sensing
element to meet the needs of the industry.
*1 Based on research by Kyocera (as of October 1, 2015).*2
CEATEC Award 2015; Semi-Grand Prix (first runner-up) in the Green
Innovation Category.*3 Based on data compiled by the European
Automobile Manufacturers Association.*4 Based on data compiled by
the Diesel Technology Forum.
For photos, please visit:
http://global.kyocera.com/news/2015/1101_mvof.html
About KYOCERA
Kyocera Corporation (NYSE:KYO)(TOKYO:6971)
(http://global.kyocera.com/), the parent and global headquarters of
the Kyocera Group, was founded in 1959 as a producer of fine
ceramics (also known as “advanced ceramics”). By combining these
engineered materials with metals and integrating them with other
technologies, Kyocera has become a leading supplier of electronic
components, semiconductor packages, solar power generating systems,
mobile phones, printers, copiers, cutting tools, and industrial
ceramics. During the year ended March 31, 2015, the company’s net
sales totaled 1.53 trillion yen (approx. USD12.7 billion). Kyocera
appears on the latest listing of the “Top 100 Global Innovators” by
Thomson Reuters, and is ranked #552 on Forbes magazine’s 2015
“Global 2000” listing of the world’s largest publicly traded
companies.
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KYOCERA Corporation (Japan)Hina Morioka,
+81-(0)75-604-3416Corporate
Communicationswebmaster.pressgl@kyocera.jpFax:
+81-(0)75-604-3516http://global.kyocera.com/
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