Effect of TiB2, TiC and TiN Protective Coatings on Tensile Strength and Fracture Behaviour of SiC Monofilament Fibres

K. L. Choy; J. F. Durodola; B. Derby; C. Ruiz

doi:10.1016/0010-4361(95)92618-M

Effect of TiB2, TiC and TiN Protective Coatings on Tensile Strength and Fracture Behaviour of SiC Monofilament Fibres

K. L. Choy, J. F. Durodola, B. Derby, C. Ruiz

Materials Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

TiB2, TiC and TiN have been studied as potential protective coatings to prevent the deleterious interfacial reactions between SiC fibres and Ti alloy matrices. These coatings have been deposited on to resistively heated SiC monofilament fibres at reduced pressure in a cold wall reactor by a chemical vapour deposition technique. Microstructure, strength and fracture properties of SiC fibres coated with the different protective coatings were evaluated and compared. The adhesion of the TiC coating on SiC fibre was comparatively weaker than that of the TiB2 coating. The strength of SiC monofilaments coated with TiC was lower than that of monofilaments coated with TiB2. The morphology of TiN coatings revealed severe cracking and spalling. Results of a thermoelastic stress analysis were helpful in interpreting these experimental observations.

Original language	Undefined
Pages (from-to)	531-539
Number of pages	9
Journal	Composites
Volume	26
Issue number	8
DOIs	https://doi.org/10.1016/0010-4361(95)92618-M
Publication status	Published - 1995

Keywords

SiC monofilament fibres
protective coatings
tensile properties
residual stress

Access to Document

10.1016/0010-4361(95)92618-MLicence: Unspecified

Cite this

@article{697798cd86a04a76b894906f645b8a71,

title = "Effect of TiB2, TiC and TiN Protective Coatings on Tensile Strength and Fracture Behaviour of SiC Monofilament Fibres",

abstract = "TiB2, TiC and TiN have been studied as potential protective coatings to prevent the deleterious interfacial reactions between SiC fibres and Ti alloy matrices. These coatings have been deposited on to resistively heated SiC monofilament fibres at reduced pressure in a cold wall reactor by a chemical vapour deposition technique. Microstructure, strength and fracture properties of SiC fibres coated with the different protective coatings were evaluated and compared. The adhesion of the TiC coating on SiC fibre was comparatively weaker than that of the TiB2 coating. The strength of SiC monofilaments coated with TiC was lower than that of monofilaments coated with TiB2. The morphology of TiN coatings revealed severe cracking and spalling. Results of a thermoelastic stress analysis were helpful in interpreting these experimental observations.",

keywords = "SiC monofilament fibres, protective coatings, tensile properties, residual stress",

author = "Choy, {K. L.} and Durodola, {J. F.} and B. Derby and C. Ruiz",

year = "1995",

doi = "10.1016/0010-4361(95)92618-M",

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pages = "531--539",

journal = "Composites",

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TY - JOUR

T1 - Effect of TiB2, TiC and TiN Protective Coatings on Tensile Strength and Fracture Behaviour of SiC Monofilament Fibres

AU - Choy, K. L.

AU - Durodola, J. F.

AU - Derby, B.

AU - Ruiz, C.

PY - 1995

Y1 - 1995

N2 - TiB2, TiC and TiN have been studied as potential protective coatings to prevent the deleterious interfacial reactions between SiC fibres and Ti alloy matrices. These coatings have been deposited on to resistively heated SiC monofilament fibres at reduced pressure in a cold wall reactor by a chemical vapour deposition technique. Microstructure, strength and fracture properties of SiC fibres coated with the different protective coatings were evaluated and compared. The adhesion of the TiC coating on SiC fibre was comparatively weaker than that of the TiB2 coating. The strength of SiC monofilaments coated with TiC was lower than that of monofilaments coated with TiB2. The morphology of TiN coatings revealed severe cracking and spalling. Results of a thermoelastic stress analysis were helpful in interpreting these experimental observations.

AB - TiB2, TiC and TiN have been studied as potential protective coatings to prevent the deleterious interfacial reactions between SiC fibres and Ti alloy matrices. These coatings have been deposited on to resistively heated SiC monofilament fibres at reduced pressure in a cold wall reactor by a chemical vapour deposition technique. Microstructure, strength and fracture properties of SiC fibres coated with the different protective coatings were evaluated and compared. The adhesion of the TiC coating on SiC fibre was comparatively weaker than that of the TiB2 coating. The strength of SiC monofilaments coated with TiC was lower than that of monofilaments coated with TiB2. The morphology of TiN coatings revealed severe cracking and spalling. Results of a thermoelastic stress analysis were helpful in interpreting these experimental observations.

KW - SiC monofilament fibres

KW - protective coatings

KW - tensile properties

KW - residual stress

U2 - 10.1016/0010-4361(95)92618-M

DO - 10.1016/0010-4361(95)92618-M

M3 - Article

SN - 0010-4361

VL - 26

SP - 531

EP - 539

JO - Composites

JF - Composites

IS - 8

ER -