10 documents found, page 1 of 1
Bio-tribocorrosion in dental applications
Rocha, L. A. [UNESP]; Oliveira, F.; Cruz, H. V.; Sukotjo, C.; Mathew, M. T.Made available in DSpace on 2022-04-29T07:17:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-01-01; In the oral cavity, materials (including our natural teeth) are exposed to a complex environment, which results in simultaneous mechanical, electrochemical, and microbiological solicitations. Therefore, bio-tribocorrosion is an important cause of degradation of dental materials leading to functional and...
Tribocorrosion behavior of Ti–C–O–N nanostructured thin films (black) for decor...
Lima, P.; Araújo, M.; Mathew, M. T.; Rocha, L. A.; Pinto, A. M. P.; Chappé, J. M.; Ramos, Marta M. D.; Marques, L.; Pierson, J. F.; Vaz, F.In the past few years, tribocorrosion has become a focus of research because of its relevance in terms of the future in-service degradation mechanisms of materials. In the particular case of decorative coatings, tribocorrosion is certainly one of the most important issues, and sweat corrosion and human contact wear are two other factors that may act as material selection tools. Thus, the current study aimed to ...
Tribocorrosion behavior of CoCrMo alloy for hip prosthesis as a function of loa...
Mathew, M. T.; Runa, Maria João Carvalho; Laurent, M. T.; Jacobs, J. J.; Rocha, L. A.; Wimmer, M. A.Metal-on-metal (MOM) hip prosthesis bearings have enjoyed renewed popularity, but concerns remain with wear debris and metal ion release causing a negative response in the surrounding tissues. Further understanding into the wear and corrosion mechanisms occurring in MOM hips is therefore essential. The purpose of this study was to evaluate the tribocorrosion behavior, or interplay between corrosion and wear, of...
Tribological, rheological and mechanical characterization of polymer blends for...
Mathew, M. T.; Novo, J.; Rocha, L. A.; Covas, J. A.; Gomes, J. R.The tribological characterization of polymers is becoming popular due to the wide range of applications of these materials where friction and wear characteristics are relevant (e.g., packaging, medical, fishing). Microabrasion, a new tribo-testing system is particularly interesting, as tests are easy to perform and are highly reproducible. This work reports the mechanical and tribological characterization of po...
Tribological behaviour of multilayered textile composites: the effect of recipr...
Mathew, M. T.; Padaki, N. V.; Alagirusamy, R.; Deopura, B. L.; Fangueiro, Raúl; Rocha, L. A.; Gomes, J. R.Textile composites have been used for various applications because of their enhanced strength/weight ratio and versatile properties compared to other materials such asmetals. Many studies have investigated the tribological behaviour of textilecomposites, but none have focused onthe tribological characterization of 3D multilayeredwoven reinforced textile composites. Five types of 3-plywoven interlocked structure...
An effective sensor for tool wear monitoring in face milling : acoustic emmision
Mathew, M. T.; Pai, P. S.; Rocha, L. A.Acoustic Emission (AE) has been widely used for monitoring manufacturing processes particularly those involving metal cutting. Monitoring the condition of the cutting tool in the machining process is very important since tool condition will affect the part size, quality and an unexpected tool failure may damage the tool, work-piece and sometimes the machine tool itself. AE can be effectively used for tool condi...
Micro-abrasion resistance of thermochemically treated steels in aqueous solutio...
Mathew, M. T.; Stack, M. M.; Matijevic, B.; Rocha, L. A.; Ariza, E.The area of micro-abrasion is an interesting and relatively recent area in tribo-testing methodologies, where small particles of less than 10 mm are employed between interacting surfaces. It is topical for a number of reasons; its direct relation to the mechanisms of the wear process in bio-tribological applications, ease in conducting tests and the good repeatability of the test results. It has widespread appl...
Some thoughts on neural network modelling of microabrasion–corrosion processes
Mathew, M. T.; Pai, P. S.; Stack, M. M.; Rocha, L. A.There is increasing interest in the interactions of microabrasion, involving small particles of less than 10 mm in size, with corrosion. This is because such interactions occur in many environments ranging from the offshore to health care sectors. In particular, microabrasion–corrosion can occur in oral processing, where the abrasive components of food interacting with the acidic environment, can lead to degrad...
TiCxOy thin films for decorative applications : tribocorrosion mechanisms and s...
Mathew, M. T.; Ariza, E.; Rocha, L. A.; Fernandes, Ana C.; Vaz, F.Recently, tribocorrosion is widely accepted as an interdisciplinary area of research and such studies on the various materials is gaining more attention by the scientist and engineers due to its practical and economical significances. Hence the main objective of present work was to investigate the tribocorrosion behavior of single layered titanium oxycarbide, TiCxOy, thin films on a reciprocating sliding tribo-...
Tribological properties of the directionally oriented warp knit GFRP composites
Mathew, M. T.; Padaki, N. V.; Rocha, L. A.; Gomes, J. R.; Alagirusamy, R.; Deopura, B. L.; Fangueiro, RaúlRecently, directionally oriented warp knit structures have gained prominence as reinforcements in composite materials due to their superior isotropic behaviour compared to other types of textile reinforcements. In the present study, composites prepared from four types of directionally oriented warp knit glass preforms with three different thermoset resins have been considered for the tribological characterisati...