Effect of BN/SiC Multilayered Interphases on Mechanical Properties of SiC Fibers and Minicomposites by PIP

Xiaoxu LÜ; Zhuyu JIANG; Yiran ZHOU; Zhe QI; Wenqing ZHAO; Jian JIAO

doi:10.15541/jim20190646

Journals >Journal of Inorganic Materials >Volume 35 >Issue 10 >Page 1099 > Article

Journal of Inorganic Materials
Vol. 35, Issue 10, 1099 (2020)

Effect of BN/SiC Multilayered Interphases on Mechanical Properties of SiC Fibers and Minicomposites by PIP

Xiaoxu LÜ¹, Zhuyu JIANG¹, Yiran ZHOU¹, Zhe QI¹, Wenqing ZHAO^1、2, and Jian JIAO^1、*

Author Affiliations

¹National Key Laboratory of Advanced Composites, AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China

²School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China;

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DOI: 10.15541/jim20190646 Cite this Article

Xiaoxu LÜ, Zhuyu JIANG, Yiran ZHOU, Zhe QI, Wenqing ZHAO, Jian JIAO. Effect of BN/SiC Multilayered Interphases on Mechanical Properties of SiC Fibers and Minicomposites by PIP[J]. Journal of Inorganic Materials, 2020, 35(10): 1099 Copy Citation Text

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1. SEM and EDS microstructures of fibers with different interphases (a, b) As-received; (c, d) BN-coated; (e, f) BN/SiC-coated

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2. XRD patterns of BN (a) and BN/SiC (b) interphase

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3. HRTEM microstructures of different interphases

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4. Tensile strength of SiC fibers with different interphases

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5. Elastic modulus of SiC fibers with different interphases

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6. XRD pattern of the pyrolysis products from VHPCS at 1100 ℃

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7. Cross-section morphologies of mini-SiC_f/SiC composites with different interphases

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8. The load-strain curves of Mini-SiC_f/SiC composites

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Linear density (g·m^-1)Sample	PIP cycle
Linear density (g·m^-1)Sample	0	1	2	3	4	5
SiC_f/SiC	(0.303±0.028)	(1.26±0.11)	(1.30±0.14)	(1.32±0.17)	(1.33±0.12)	(1.33±0.13)
SiC_f/BN/SiC	(0.330±0.023)	(1.31±0.10)	(1.34±0.11)	(1.35±0.15)	(1.36±0.10)	(1.36±0.13)
SiC_f/(BN/SiC)/SiC	(0.346±0.035)	(1.25±0.08)	(1.28±0.11)	(1.30±0.15)	(1.30±0.14)	(1.31±0.10)

Table 1. The linear density of Mini-composites after different PIP cycles

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