Bonding mechanism between the AlN ceramic matrix and the copper-based metal cladding layer

• Autorzy: Wang Song , Lu Hao , Shu Fengyuan , Zhang Xin , Li Guibian

Identyfikatory

DOI

10.2478/msp-2025-0004

• Języki publikacji: EN

Abstrakty

EN

High-temperature brazing and laser cladding methods can form a good metallurgical bond between ceramics and copper cladding. Herein, through these two methods, the preparation of a Cu-based metal cladding layer on the surface of aluminum nitride (AlN) ceramics was carried out. Scanning electron microscopy, X-ray diffraction, energy-dispersive spectroscopy, and other characterization techniques were employed to observe the macroscopic and microscopic morphologies, elemental distribution, and microstructure characteristics of Cu-based metal coatings and transition layers, in order to analyze the interface bonding mechanism. Research has found that the active element titanium (Ti) has a significant promoting effect on the wettability of Cu powder on the surface of ceramics. Metallurgical reactions occur at the interface between ceramics and Cu-based metal coatings. Al and N elements in ceramics react with most of the Ti in the metal coating and Cu in the molten metal also reacts with Ti, generating new compounds, thereby forming a metallurgical bond between ceramics and Cu coatings.

Słowa kluczowe

EN

laser cladding; ceramic substrate; elemental distribution; microstructure

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2025
• Tom: Vol. 43, No. 1
• Strony: 42--50
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Wang Song

• State Power Investment Group Yunnan International Power Investment Co., Ltd Kunming, 650228 China

autor

Lu Hao

• School of Electrical Engineering, Xinjiang University Urumqi, 830046,China

autor

Shu Fengyuan

• School of Chemical Engineering and Technology, Sun Yat sen University Zhuhai, 519082 China

autor

Zhang Xin

• New Energy Technology Research Institute, State Power Investment Corporation Science and Technology Research Institute Beijing, 102218 China

autor

Li Guibian

• Shanxi Fenglei Drilling Tools Co. Ltd. Houma, 043001 China

Bibliografia

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