Film failure at earlier and later stages of nanoindentation in static and sliding modes

R Dash, K Bhattacharyya, AS Bhattacharyya - Engineering Failure Analysis, 2023 - Elsevier
Crack growth needs to be restricted in ceramics used for biomedical, microelectronic, and
any structural applications whatsoever. Having the know-how of its initiation and …

Synergistic fractural features observed in Ti-B-Si-C hard coatings on enhancing the sharpness of nano indenters

R Dash, K Bhattacharyya, AS Bhattacharyya - International Journal of …, 2023 - Elsevier
Abstract The multicomponent Ti-B-Si-C hard coatings consisting of different hard phases
have varied uses in tool, heavy duty as well as microelectronic industries, The fractural …

Stress distribution variations during nanoindentation failure of hard coatings on silicon substrates

R Dash, K Bhattacharyya… - … and Precision Engineering …, 2023 - pubs.aip.org
Regarding quality inspection of technologically important nanocomposite hard coatings
based on Ti, B, Si, C, and N and bioceramics such as hydroxyapatite that are used in small …

Sensitivity in nanomechanical pedestal MEMS cantilever

AK Rajak, R Dash, A Kumari… - Materials Today …, 2024 - Elsevier
Nanomechanical resonator-based sensing devices are used in medical diagnostics based
on their high-frequency dynamic behavior. Cantilevers fall into the category of …

[HTML][HTML] Mixed-Mode Fracture behaviour of Si-CN coatings

AS Bhattacharyya, K Bhattacharyya - Next Materials, 2024 - Elsevier
Micro-electro-mechanical systems (MEMS) technology has made it possible for the
semiconductor industry to construct systems and devices on silicon substrates …

[HTML][HTML] Growth of stable SiC2N2-Si2CN4 phases during nitrogen incorporated sputter deposition of silicon carbide

AS Bhattacharyya - Chemical Physics Impact, 2024 - Elsevier
The incorporation of nitrogen during sputtering of silicon carbide (Sisingle bondC) target
facilitates formation of different technologically significant phases. The bonding nature in …

Effect of heat treatment on microstructure and mechanical properties of selective laser melted Inconel 718 alloy

Q Fan, J Li, L Zheng, C Hao, Q Zhang, Y Wang - PloS one, 2024 - journals.plos.org
In this study, we conducted two heat treatment processes, namely double aging (DA) and
solid solution followed by double aging (SA), on the Inconel 718 alloy fabricated by selective …

Dual Mode Fracture Based on Loading Rate During Sliding Indentation of Si-CN Hard Coatings on 304SS Substrates

AS Bhattacharyya - Authorea Preprints, 2023 - advance.sagepub.com
Scratch tests were performed on thermal resistant hard Si-CN coatings deposited on steel
(SS) 304, by RF (Radio frequency) magnetron sputtering. The abrasion and wear properties …

Ductile–brittle indentation fracture transitions in hard coatings

AS Bhattacharyya, AK Rajak… - Surface …, 2024 - journals.sagepub.com
The article has provided a novel way of finding the probability of fracture (P f) based on
modifications of some established concepts. It has also discussed ductile to brittle as well as …

[PDF][PDF] SLIDING RESPONSES OF Si-CN COATING ON GLASS: CHIPPING OBSERVED IN FEM

AS Bhattacharyya, K Bhattacharyya - researchgate.net
ABSTRACT Finite Element Modelling of Scratch tests were done on thermally resistant hard
Si-CN coatings developed on glass substrates using magnetron sputtering. The Von Mises …