Mo/Ag laminated metal matrix composite for solar cell interconnected sheet and preparation process thereof

A technology for solar cells and composite materials, applied in the field of metal matrix composite material preparation, can solve the problems of poor solderability, difficulty of molybdenum, and no protective effect of oxide film.

Inactive Publication Date: 2011-08-31
TIANJIN UNIV
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Problems solved by technology

[0005] The problem of using molybdenum and molybdenum alloys instead of silver as the interconnect material is that the solderability of molybdenum is relatively poor, and it will be strongly oxidized at high temperatures, and the oxide film

Method used

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  • Mo/Ag laminated metal matrix composite for solar cell interconnected sheet and preparation process thereof
  • Mo/Ag laminated metal matrix composite for solar cell interconnected sheet and preparation process thereof
  • Mo/Ag laminated metal matrix composite for solar cell interconnected sheet and preparation process thereof

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Embodiment Construction

[0042] The present invention is described in detail in conjunction with the embodiments and the accompanying drawings.

[0043] figure 1 It is a schematic diagram of silver ion implantation molybdenum metal foil device, in which, 1-ion source, 2-ion beam, 3-implantation chamber, 4-sample, 5-target disk, 6-vacuum diffusion pump, 7-maintenance pump, 8-mechanical Pump, 9-high pressure and system control cabinet. The components of the ion implanter include ion source, vacuum implantation chamber, target plate, vacuum system, high voltage and control cabinet. Among them, the vacuum system is composed of a diffusion pump, a maintenance pump and a mechanical pump. The vacuum system is directly connected to the vacuum injection chamber through a valve; the target disk is located in the injection chamber; the ion source is located above the injection chamber and is obliquely opposite to the target disk. During implantation, the ion source is supplied with arc voltage, trigger voltage...

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Abstract

The invention relates to a Mo/Ag laminated metal matrix composite for solar cell interconnected sheets and a preparation process thereof. By employing a vacuum metal plasma implantation technology, the invention comprises the steps of implanting metallic elements according to certain energy and dosage into molybdenum foil interconnected sheet materials processed by burnishing, degreasing and acidpickling activation; plating silver on the surface of molybdenum foils by a non-cyanide electroplating method; and conducting high temperature annealing under the protection of argon so that the metallic element of silver diffuses and penetrates into the molybdenum foils to form a metallurgical binding with Mo/Ag interfaces and finally to obtain the Mo/Ag laminated metal matrix composite having high interfacial binding strength and high welding strength. The welding (interfacial) strength of the composite reaches 460gf by single-point resistance spot welding. According to the invention, the Mo/Ag laminated metal matrix composite is prepared without adding an intermediate metal layer and cyanide electroplated silver. The ground testing is conducted and the performance requirement is achieved.

Description

technical field [0001] The invention relates to the preparation technology of metal matrix composite materials, especially a preparation process and device of molybdenum / silver (Mo / Ag) layered metal matrix composite materials for long-life aerospace vehicle solar cell sail interconnection sheets, specifically a new A technology for the fabrication of long-life spacecraft solar cell sail interconnects using molybdenum / silver layered metal matrix composites. Background technique [0002] Molybdenum and molybdenum alloys have excellent heat resistance, high temperature mechanical properties, low molybdenum thermal expansion coefficient and high thermal conductivity. Among them, the low thermal expansion coefficient and high thermal conductivity make molybdenum and molybdenum alloys very resistant to thermal shock, and their thermal response is very low after being made into a structure. In addition, molybdenum is not ferromagnetic. [0003] Because of these characteristics, m...

Claims

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Application Information

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IPC IPC(8): H01L31/048H01L31/18H01J37/317C23C14/48C23C14/16C25D3/46C25D5/50
CPCY02E10/50Y02P70/50
Inventor 黄远孔德月呼文韬程保义王玉林
Owner TIANJIN UNIV
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