Direct Ultrasonic Soldering of AlN Ceramics with Copper Substrate Using Zn-Al-Mg Solder

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F20%3A10245741" target="_blank" >RIV/61989100:27360/20:10245741 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2075-4701/10/2/160" target="_blank" >https://www.mdpi.com/2075-4701/10/2/160</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/met10020160" target="_blank" >10.3390/met10020160</a>

Result language

angličtina

Original language name

Direct Ultrasonic Soldering of AlN Ceramics with Copper Substrate Using Zn-Al-Mg Solder

Original language description

This research aims to develop the direct soldering of aluminum nitride (AlN) ceramics with a copper substrate using Zn-Al-Mg solder. The solder type, Zn5Al3Mg, has a close-to eutectic composition with a melting point of 359 degrees C. The microstructure of Zn-Al-Mg solder is composed of solid solution (Al), solid solution (Zn), an Mg2Zn11 phase and a minority MgZn2 phase. The tensile strength is from 82 to 169 MPa and depends on the magnesium content. The bond with AlN ceramics is formed due to the interaction of active Zn, Al and Mg metals with the substrate surface without forming a new transition phase. Zn and Al elements exert a substantial effect on bond formation with the Cu substrate. Magnesium does not contribute to bond formation with the Cu substrate. Two new phases, CuZn4-epsilon and Cu33Al17/Cu9Al4/Cu5Zn8-gamma, were observed, and form the transition zone of the joint. The maximum shear strength of the AlN/Cu joint fabricated using Zn5Al3Mg solder is 47 MPa. The maximum shear strength of the Cu/Cu joint fabricated using the same solder is 93 MPa.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20500 - Materials engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Metals

ISSN

2075-4701

e-ISSN

—

Volume of the periodical

10

Issue of the periodical within the volume

2

Country of publishing house

CH - SWITZERLAND

Number of pages

18

Pages from-to

160

UT code for WoS article

000522450800005

EID of the result in the Scopus database

2-s2.0-85078537886