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SiC whisker toughened Si3N4 ceramic pneumatic motor blade, preparation method and pneumatic motor

An air motor and whisker technology, applied in the field of ceramic materials, can solve the problems of short service life, poor toughness, low strength, etc., and achieve the effects of improving service life, denser texture and good thermal shock resistance stability.

Pending Publication Date: 2021-09-17
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the blades of the existing light-load air motors are made of metal, which easily lead to problems such as low strength, poor toughness, and short service life under the premise of ensuring light load

Method used

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  • SiC whisker toughened Si3N4 ceramic pneumatic motor blade, preparation method and pneumatic motor
  • SiC whisker toughened Si3N4 ceramic pneumatic motor blade, preparation method and pneumatic motor

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The invention provides a SiC whisker toughened Si 3 N 4 Ceramic air motor blades, the raw material is composed of the following components: Si 3 N 4 Ceramic base powder, SiC whisker, Y 2 o 3 , A1 2 o 3 , and epoxy resin; Si 3 N 4 Ceramic base powder as raw material, add 10wt% SiC whisker of raw material mass, 6wt% Y 2 o 3 , 4wt% A1 2 o 3 , the amount of epoxy resin is 35vol% of the total volume of the composite powder.

[0036] Si 3 N 4 Ceramic base powder is β-Si 3 N 4 ,D 50 = 6.59 μm.

[0037] SiC whiskers have a diameter of 0.1-1.0 μm and an aspect ratio >20.

[0038] The epoxy resin described in this example is a bisphenol A type epoxy resin. The molecular structure of this epoxy resin contains hydroxyl and ether bonds. The curing process further generates new -OH and -O-, so that the cured product has a strong High cohesion and adhesion.

[0039] In a specific embodiment, the type of the epoxy resin is E12, and the epoxy value is 0.10-0.18.

[00...

Embodiment 2

[0048] The invention provides a SiC whisker toughened Si 3 N 4 Ceramic air motor blades, the raw material is composed of the following components: Si 3 N 4 Ceramic base powder, SiC whisker, Y 2 o 3 , A1 2 o 3 , and epoxy resin; Si 3 N 4 Ceramic base powder as raw material, add 9wt% SiC whisker, 7wt% Y 2 o 3 , 3wt%A1 2 o 3 , the amount of epoxy resin is 38vol% of the total volume of the composite powder.

[0049] Si 3 N 4 Ceramic base powder is β-Si 3 N 4 ,D 50 = 8.0 μm.

[0050] SiC whiskers have a diameter of 0.1-1.0 μm and an aspect ratio >20.

[0051] The type of the epoxy resin described in this embodiment is E12, and the epoxy value is 0.10-0.18.

[0052] The embodiment of the present invention also provides the SiC whisker toughened Si 3 N 4 A method for preparing a ceramic air motor blade, comprising the following steps:

[0053] S1, take each component in proportion, Si 3 N 4 Ceramic base powder, SiC whisker, Y 2 o 3 , A1 2 o 3 Mix well, and...

Embodiment 3

[0059] The invention provides a SiC whisker toughened Si 3 N 4 Ceramic air motor blades, the raw material is composed of the following components: Si 3 N 4 Ceramic base powder, SiC whisker, Y 2 o 3 , A1 2 o 3 , and epoxy resin; Si 3 N 4 Ceramic base powder is used as a raw material, and 11wt% SiC whiskers, 7wt% Y 2 o 3 , 3wt%A1 2 o 3 , the amount of epoxy resin is 34vol% of the total volume of the composite powder.

[0060] Si 3 N 4 Ceramic base powder is β-Si 3 N 4 ,D 50 = 4.0 μm.

[0061] SiC whiskers have a diameter of 0.1-1.0 μm and an aspect ratio >20.

[0062] The type of the epoxy resin described in this embodiment is E12, and the epoxy value is 0.10-0.18.

[0063] The embodiment of the present invention also provides the SiC whisker toughened Si 3 N 4 A method for preparing a ceramic air motor blade, comprising the following steps:

[0064] S1, take each component in proportion, Si 3 N 4 Ceramic base powder, SiC whisker, Y 2 o 3 , A1 2 o 3 M...

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Abstract

The invention discloses a SiC whisker toughened Si3N4 ceramic pneumatic motor blade, a preparation method and a pneumatic motor, and relates to the technical field of ceramic materials. The ceramic blade is prepared from the following raw materials: Si3N4 ceramic base powder, SiC whiskers, Y2O3, Al2O3 and epoxy resin. The pneumatic motor blade is made of the Si3N4 ceramic material instead of an existing metal material, the density is low, the total weight of a motor product can be fully reduced, and the pneumatic motor blade has the advantage of being lighter in load; according to the ceramic pneumatic motor blade disclosed by the invention, SiC whiskers are also added to carry out toughening modification on the material, so that the ceramic blade has the characteristics of higher bending resistance, more compact texture and higher wear resistance; the defects of low blade strength and poor toughness in the existing pneumatic motor are effectively improved, and the service life of the blade is prolonged. According to the preparation method provided by the invention, a selective laser sintering (SLS) technology is adopted to prepare the Si3N4 ceramic blade biscuit, and a ceramic component with a complex appearance is rapidly formed.

Description

technical field [0001] The invention relates to the technical field of ceramic materials, in particular to a SiC whisker toughened Si 3 N 4 Ceramic air motor blade and preparation method thereof. Background technique [0002] Pneumatic motor, also known as wind motor, refers to a device that converts the pressure energy of compressed air into rotational mechanical energy, and is generally used as a rotational power source for more complex devices or machines. According to the structure, air motors are classified into: vane air motors, piston air motors, compact vane air motors, and compact piston air motors. Compared with the electric motor that plays the same role, the air motor is characterized by a light outer shell and convenient transportation. The air motor also has a high starting torque and can be started directly with a load. When overloaded, the motor only slows down or stops, and when the overload is removed, it can immediately resume normal operation without ...

Claims

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Application Information

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IPC IPC(8): C04B35/80C04B35/584C04B35/622C04B35/64F01C1/344F01C21/08
CPCC04B35/80C04B35/584C04B35/622C04B35/64F01C1/3445F01C21/0809C04B2235/5276C04B2235/9607C04B2235/3217C04B2235/3225C04B2235/665
Inventor 张朝凯伍尚华宗潇
Owner GUANGDONG UNIV OF TECH
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