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ZnAl2O4 coated aluminium borate whister reinforced aluminium base or magnesium base composite meterial and its preparation method

A technology of aluminum borate whiskers and composite materials, which is applied in the field of aluminum borate whiskers reinforced aluminum-based or magnesium-based composite materials and their preparation, can solve the problem of poor wettability between aluminum borate whiskers and a matrix, damage to the integrity of aluminum borate whiskers, Reduce the mechanical properties of composite materials and other problems, and achieve the effects of improving mechanical properties, increasing tensile strength, and improving interfaces

Inactive Publication Date: 2006-06-14
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing aluminum borate whisker composite materials, the wettability between the aluminum borate whiskers and the matrix is ​​poor, and the interface bonding strength is not high, and the interface reaction between the aluminum borate whiskers and the elements in the matrix not only damages the integrity of the aluminum borate whiskers, but also The formation of brittle phases at the interface reduces the mechanical properties of composite materials and seriously restricts the application of composite materials

Method used

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  • ZnAl2O4 coated aluminium borate whister reinforced aluminium base or magnesium base composite meterial and its preparation method
  • ZnAl2O4 coated aluminium borate whister reinforced aluminium base or magnesium base composite meterial and its preparation method
  • ZnAl2O4 coated aluminium borate whister reinforced aluminium base or magnesium base composite meterial and its preparation method

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specific Embodiment approach 1

[0006] Specific implementation mode one: this implementation mode ZnAl 2 o 4 Coated aluminum borate whiskers reinforced aluminum-based or magnesium-based composite materials are made of three raw materials: ZnO, aluminum borate whiskers, and aluminum-based or magnesium-based materials; the mass of ZnO is 2 to 30% of the mass of aluminum borate whiskers, and the ZnO The volume of whiskers of aluminum borate and aluminum borate accounts for 15-30% of the volume of the three raw materials, and the remaining volume is aluminum-based or magnesium-based.

specific Embodiment approach 2

[0007] Specific embodiment two: The difference between this embodiment and specific embodiment one is: the quality of ZnO is 10-20% of the quality of aluminum borate whiskers, and the volume of ZnO and aluminum borate whiskers accounts for 20-25% of the volume of the three raw materials. %, the remaining volume is aluminum or magnesium based.

specific Embodiment approach 3

[0008] Specific embodiment three: the difference between this embodiment and specific embodiment one is: the quality of ZnO is 15% of the aluminum borate whisker quality, and the volume of ZnO and aluminum borate whisker accounts for 23% of three kinds of raw material volumes, and remaining volume It is based on aluminum or magnesium.

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Abstract

The invention relates to ZnAl2O4 covering aluminium borate crystal whisker strengthening aluminium base or magnesium base composite and its manufacturing method. It solves the current problems that aluminium borate crystal whisker and basal body wet ability is bad and their bonding strength is not high. And it can effectively obstruct interface reaction. The composite is made up of ZnO, aluminium borate crystal whisker, and aluminium base or magnesium base. The preparing steps as the following: adding aluminium borate crystal whisker into ZnO sol to make ZnO coating aluminium borate crystal whisker; preparing ZnAl2O4 covering aluminium borate crystal whisker precast block; extrusion casting to gain the composite. The superficial reacted by ZnO and aluminium borate can improve aluminium borate crystal whisker and basal body wet ability and interface bonding strength to obviously improve composite mechanical property.

Description

technical field [0001] The invention relates to an aluminum borate whisker-reinforced aluminum-based or magnesium-based composite material and a preparation method thereof. Background technique [0002] In the existing aluminum borate whisker composite materials, the wettability between the aluminum borate whiskers and the matrix is ​​poor, and the interface bonding strength is not high, and the interface reaction between the aluminum borate whiskers and the elements in the matrix not only damages the integrity of the aluminum borate whiskers, but also The formation of brittle phases at the interface reduces the mechanical properties of the composite material and seriously restricts the application of the composite material. Contents of the invention [0003] The purpose of the present invention is to solve the poor wettability between the aluminum borate whiskers and the matrix in the existing composite materials, and the interface reaction between the aluminum borate whi...

Claims

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Application Information

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IPC IPC(8): C22C45/00C22C33/02C22C45/08
Inventor 费维栋岳红彦王黎东
Owner HARBIN INST OF TECH
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