Study on factors of interface properties of axial braided C/C composite materials

• Autorzy: Wang Chunguang , Tian Weiping , Zhang Kaining

Identyfikatory

DOI

10.2478/msp-2021-0010

• Języki publikacji: EN

Abstrakty

EN

In order to study the influencing factors of the tensile properties of axial braided C/C composites, the interfacial shear strength of the fiber rod and matrix was studied and ejecting tests of the fiber rod were carried out. The ejecting test specimens were formed with different thicknesses to obtain the changing rule of the interface shear strength with the thickness of the sample, and the testing method for the interface shear strength of the axial braided C/C composite material. The results show that the recommended thickness of the ejecting test specimens for the interface shear strength of is four times the diameter of the fiber rod. The interface shear strength distribution law of two different batches of materials was obtained through the interface ejecting test. The mesoscopic structure characteristics and pore statistical distribution law of the hole surface after ejecting were analyzed by scanning electron microscopy (SEM), and the mechanism of the difference of the interface shear strength was obtained. The tensile properties of two different batches of materials were obtained by tensile tests. The results show that the tensile properties of the two batches of materials differ greatly. The analysis suggests that the reason for this difference is the differences in interfacial bonding strength between the fiber rod and matrix. The higher the interface shear strength, the better the tensile property of the material will be.

Słowa kluczowe

EN

interface properties; axial braided C/C; porosity scale; interface shear strength

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2021
• Tom: Vol. 39, No. 1
• Strony: 49--58
• Opis fizyczny: Bibliogr. 19 poz., rys.

Twórcy

autor

Wang Chunguang

• State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace Engineering, Xi 'an JiaotongUniversity, Xi 'an 710049, Shaanxi Province, People's Republic of China

autor

Tian Weiping

• The Fourth Academy of China Aerospace Science and Technology Corporation, Xi 'an 710025, Shaanxi Province, People's Republic of China

autor

Zhang Kaining

• State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace Engineering, Xi 'an JiaotongUniversity, Xi 'an 710049, Shaanxi Province, People's Republic of China

Bibliografia

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