Ceramic/metal interface in laser deposited hard refractory composite coating: electron microscopic study

Arvind Agarwal; Narendra B. Dahotre; Lawrence F. Allard

Ceramic/metal interface in laser deposited hard refractory composite coating: electron microscopic study

Arvind Agarwal, Narendra B. Dahotre, Lawrence F. Allard

Nuclear Energy Materials Microanalysis

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

7 Scopus citations

Abstract

Ceramic-metal interface plays the prime role in estimation of properties of composite and similar materials. In the present study, TiB₂ has been deposited on AISI 1010 steel using laser surface engineering (LSE) process. TiB₂/Fe interface is examined by electron microscopy (SEM and TEM) at microstructural and atomic level. A continuous, crack free and metallurgically bonded coating is obtained which is 'composite' in nature. TiB₂ particles are randomly distributed in Fe matrix without any preferred crystallographic orientation. High resolution transmission electron microscopy (HRTEM) shows that TiB₂/Fe interface is atomically smooth and sharp with very little mismatch. There is no evidence of cracking or delamination at the interface. However, a small reaction zone of approximately 100 nm is formed at the interface as a consequence of non-equilibrium synthesis during LSE process.

Original language	English
Pages (from-to)	250-263
Number of pages	14
Journal	Praktische Metallographie/Practical Metallography
Volume	36
Issue number	5
State	Published - May 1999

Cite this

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abstract = "Ceramic-metal interface plays the prime role in estimation of properties of composite and similar materials. In the present study, TiB2 has been deposited on AISI 1010 steel using laser surface engineering (LSE) process. TiB2/Fe interface is examined by electron microscopy (SEM and TEM) at microstructural and atomic level. A continuous, crack free and metallurgically bonded coating is obtained which is 'composite' in nature. TiB2 particles are randomly distributed in Fe matrix without any preferred crystallographic orientation. High resolution transmission electron microscopy (HRTEM) shows that TiB2/Fe interface is atomically smooth and sharp with very little mismatch. There is no evidence of cracking or delamination at the interface. However, a small reaction zone of approximately 100 nm is formed at the interface as a consequence of non-equilibrium synthesis during LSE process.",

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N2 - Ceramic-metal interface plays the prime role in estimation of properties of composite and similar materials. In the present study, TiB2 has been deposited on AISI 1010 steel using laser surface engineering (LSE) process. TiB2/Fe interface is examined by electron microscopy (SEM and TEM) at microstructural and atomic level. A continuous, crack free and metallurgically bonded coating is obtained which is 'composite' in nature. TiB2 particles are randomly distributed in Fe matrix without any preferred crystallographic orientation. High resolution transmission electron microscopy (HRTEM) shows that TiB2/Fe interface is atomically smooth and sharp with very little mismatch. There is no evidence of cracking or delamination at the interface. However, a small reaction zone of approximately 100 nm is formed at the interface as a consequence of non-equilibrium synthesis during LSE process.

AB - Ceramic-metal interface plays the prime role in estimation of properties of composite and similar materials. In the present study, TiB2 has been deposited on AISI 1010 steel using laser surface engineering (LSE) process. TiB2/Fe interface is examined by electron microscopy (SEM and TEM) at microstructural and atomic level. A continuous, crack free and metallurgically bonded coating is obtained which is 'composite' in nature. TiB2 particles are randomly distributed in Fe matrix without any preferred crystallographic orientation. High resolution transmission electron microscopy (HRTEM) shows that TiB2/Fe interface is atomically smooth and sharp with very little mismatch. There is no evidence of cracking or delamination at the interface. However, a small reaction zone of approximately 100 nm is formed at the interface as a consequence of non-equilibrium synthesis during LSE process.

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Ceramic/metal interface in laser deposited hard refractory composite coating: electron microscopic study

Abstract

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