Top Page | English | 简体中文 | 繁體中文 | 한국어 | 日本語
Friday, 27 October 2023, 10:00 HKT/SGT

Source: Tanaka Holdings Co., Ltd.
TANAKA Develops First High-Entropy Alloy Powder Comprised Entirely of Precious Metals
With the establishment of five different precious metals alloy powder production methods

TOKYO, Oct 27, 2023 - (JCN Newswire) - TANAKA Kikinzoku Kogyo K.K., a core company of the TANAKA Precious Metals Group, has developed a high-entropy alloy powder composed entirely of precious metals with a fine particle size of 10um or less, high crystallinity and excellent composition uniformity. This is the world's first high-entropy alloy powder composed entirely of five precious metals: platinum (Pt), palladium (Pd), iridium (Ir), ruthenium (Ru), and rhodium (Rh). TANAKA has established a mass production process and will provide samples in October.

TANAKA established the five precious metal alloy powders and their production methods used in this product, and obtained a basic patent in June 2023[1]. This product's precious metal alloy powder comprises only five elements that maintain the corrosion resistance, electrical conductivity and other excellent properties of precious metals. They are micro-order[2] alloy powders that are easy to use in industrial applications.

Unlike conventional nano-order precious metal high-entropy alloys, the new alloy is stable due to its large crystallite size, and it satisfies the inherent requirements of alloys, such as improved mechanical strength, corrosion resistance, and controlled thermal expansion. The new alloy powder is expected to improve the functions and properties of precious metal alloys, whose properties vary greatly depending on the composition ratio of the alloy.

High-entropy alloy powder
TANAKA develops the world's first high-entropy alloy powder comprised of precious metals [Image: TANAKA Precious Metals]

The precious metal alloy of this product is in powder form, though it can also be utilized in paste form, which is often used in various circuits and sensors, in addition to modelling using a 3D printer and rod forming (forming rod-shaped material by solidifying powder). Furthermore, high-entropy alloys' high strength and high heat resistance properties are expected to be utilized in catalysts and conductive films that require high durability, among other applications.

[1] Patent No. 7300565 related to high-entropy alloy powder was granted on June 29, 2023. The precious metal alloy powder in this product is defined as (1) precious metal alloy powder consisting of an alloy of five or more precious metal elements, (2) average particle size of 10µm or less, (3) crystallite size of 60nm or more, and (4) one peak observed in the range of diffraction angle 2θ of 38 to 44° in the X-ray diffraction spectrum.

[2] Order: A term used in physics, engineering, and other fields to roughly express the magnitude of a number. It represents the number of digits or degrees of a unit.

Component and surface analysis of high-entropy alloy powder
Component and surface analysis of high-entropy alloy powder
X-ray diffraction spectra of high-entropy alloy powder and various precious metal powders
X-ray diffraction spectra of high-entropy alloy powder and various precious metal powders.

About High-Entropy Alloys

High-entropy alloys contain five or more elements in equal amounts and are characterized by the absence of major elements that make up most of the alloy. They have been attracting attention as a new category of metallic materials in recent years. Research and development on high-entropy alloys is being conducted worldwide, as the properties of the metals and precious metals contained in these alloys can simultaneously produce properties such as high strength, high heat resistance and the possibility of creating new properties.

About TANAKA Precious Metals

Since its foundation in 1885, TANAKA Precious Metals has built a portfolio of products to support a diversified range of business uses focused on precious metals. TANAKA is a leader in Japan regarding the volumes of precious metals handled. For many years, TANAKA has manufactured and sold precious metal products for industry and provided precious metals for jewellery and other assets. As precious metals specialists, Group companies in Japan and worldwide collaborate on manufacturing, sales, and technology development to offer a full range of products and services. With 5,355 employees, the group's consolidated net sales for the year ending March 31, 2023, was 680 billion yen.

Global industrial business website

Product inquiries
TANAKA Kikinzoku Kogyo K.K.

Press inquiries
TANAKA Holdings Co., Ltd.

Press Release:

Topic: New Product
Source: Tanaka Holdings Co., Ltd.

Sectors: Metals & Mining, Electronics, Chemicals, Spec.Chem, Science & Nanotech, Engineering
From the Asia Corporate News Network

Copyright © 2024 ACN Newswire. All rights reserved. A division of Asia Corporate News Network.

Tanaka Holdings Co., Ltd.
July 4, 2024 02:00 HKT/SGT
TANAKA Precious Metals to Provide Award Items and Ceremony Souvenirs for the International Friendly Matches of the Japan Men's National Blind Football Team at the "DAICEL Blind Football Japan Cup 2024 in Osaka" to Begin on July 4
Mar 29, 2024 10:00 HKT/SGT
TANAKA Memorial Foundation Announces Recipients of Precious Metals Research Grants
Mar 28, 2024 02:00 HKT/SGT
TANAKA to Install 500 kW Fuel Cell System to Promote the Use of Hydrogen Energy at Production Plants
Mar 27, 2024 02:00 HKT/SGT
TANAKA Holdings Announces Green Loan Financing for Construction of New Head Office Building
Mar 26, 2024 18:00 HKT/SGT
TANAKA Holdings gibt Finanzierung fur den Bau eines neuen Hauptsitzgebaudes durch einen Green Loan bekannt
Mar 20, 2024 02:00 HKT/SGT
TANAKA Holdings to Relocate Head Office to New Building in Kayabacho, Site of Group's Founding
Mar 12, 2024 02:00 HKT/SGT
TANAKA Establishes Bonding Technology for High-Density Semiconductor Mounting Using AuRoFUSE(TM) Preforms
Feb 21, 2024 03:00 HKT/SGT
TANAKA to Provide Pure Gold, Pure Silver, and Pure Bronze Medals for the Tokyo Marathon 2024
Feb 1, 2024 03:00 HKT/SGT
TANAKA Establishes New Method of Recovering Precious Metals Adhering to Vacuum Film Formation Equipment Components
Dec 13, 2023 03:00 HKT/SGT
TANAKA Contributes to Global Vascular, a Medical Venture Company Developing a Stent Delivery System for Lower Limb Atherosclerosis
More news >>
 News Alerts
Copyright © 2024 ACN Newswire - Asia Corporate News Network
Home | About us | Services | Partners | Events | Login | Contact us | Privacy Policy | Terms of Use | RSS
US: +1 214 890 4418 | Beijing: +86 400 879 3881 | Hong Kong: +852 8192 4922 | Singapore: +65 6549 7068 | Tokyo: +81 3 6859 8575

Connect With us: