Identification and Quantification of Combustion Products Released by Non-Metallic Materials Used for Medical Oxygen Equipment

Author(s):  
M. Carré ◽  
H. Barthélémy ◽  
J. Bruat ◽  
S. Lombard ◽  
O. Longuet ◽  
...  
2009 ◽  
Vol 6 (10) ◽  
pp. 102293
Author(s):  
M. Carré ◽  
H. Barthélémy ◽  
J. Bruat ◽  
S. Lombard ◽  
O. Longuet ◽  
...  

2020 ◽  
Vol 9 (1) ◽  
pp. 700-715 ◽  
Author(s):  
Wei Jian ◽  
David Hui ◽  
Denvid Lau

AbstractRecent advances in biomedicine largely rely on the development in nanoengineering. As the access to unique properties in biomaterials is not readily available from traditional techniques, the nanoengineering becomes an effective approach for research and development, by which the performance as well as the functionalities of biomaterials has been greatly improved and enriched. This review focuses on the main materials used in biomedicine, including metallic materials, polymers, and nanocomposites, as well as the major applications of nanoengineering in developing biomedical treatments and techniques. Research that provides an in-depth understanding of material properties and efficient enhancement of material performance using molecular dynamics simulations from the nanoengineering perspective are discussed. The advanced techniques which facilitate nanoengineering in biomedical applications are also presented to inspire further improvement in the future. Furthermore, the potential challenges of nanoengineering in biomedicine are evaluated by summarizing concerned issues and possible solutions.


Author(s):  
Marzia Cosmi ◽  
Nathaly Gonzalez-Quiñonez ◽  
Pablo Tejerina Díaz ◽  
Ángel Manteca ◽  
Elisa Blanco González ◽  
...  

The bio-tribocorrosion of metallic materials used for dental implants (Ti and alloys) in the oral environment involves the production of metallic debris in the ionic, but also in the nanoparticulated...


2019 ◽  
Vol 23 (3) ◽  
pp. 36-41
Author(s):  
Anna Dziubińska ◽  
Janusz Sikora

Author(s):  
Jozef Martinka ◽  
Janka Dibdiakova

This chapter deals with materials used in safety and security engineering. The most commonly used materials in this field include shielding materials, materials for protective suits, electrically insulating materials and materials for fire protection. The first part of the chapter describes the properties of materials used in the above applications. The second part of the chapter focuses on characteristics of materials that accurately describe their fire risk. The fire risk of a material is quantified by its resistance to ignition (determined generally by critical heat flux and ignition temperature) and by the impact of the fire on the environment. The impact of fire is usually determined by the heat release rate, toxicity of combustion products (primarily determined by carbon monoxide yield and for materials that contain nitrogen, also through the hydrogen cyanide yield) and the decrease of visibility in the area (depending on the geometry of the area and the smoke production rate).


2013 ◽  
Vol 583 ◽  
pp. 9-15 ◽  
Author(s):  
Victor Geanta ◽  
Ionelia Voiculescu ◽  
Radu Stefanoiu ◽  
Elena Roxana Rusu

Stainless steels, commercial as well as with special properties, are the principal metallic materials used for medical devices manufacturing. Stainless steels for medical devices should have superior mechanical properties, as: hardness, wear resistance, tensile strength, elongation, fracture toughness, creep resistance etc. This paper aims to present experimental researches regarding the obtaining in vacuum arc remelting device (VAR) of austenitic and martensitic stainless steels and their characterization from microstructure and microhardness point of view.


2018 ◽  
Vol 178 ◽  
pp. 04009
Author(s):  
Cristian Deac ◽  
Alina Gligor ◽  
Lucian Tarnu

Castability is, along with biocompatibility, one of the most important characteristics of metallic materials used for dental prosthetic applications. In addition, the characteristics and performance of the employed casting machine are also decisive for the end result of the casting, especially when dealing with titanium or a titanium alloy. Starting from a critical analysis of the existing methods for determining the castability of dental alloys, the current paper presents a new method (and associated pattern) for determining the castability. Also, given the castability’s dependence on the type of casting machine, the paper includes an analysis of suitable casting machines and suggests some possible improvements.


2015 ◽  
Vol 760 ◽  
pp. 391-396 ◽  
Author(s):  
Claudia Girjob ◽  
Octavian Bologa ◽  
Sever Gabriel Racz ◽  
Cristina Biris

This paper aims to study the plastic deformation behaviour of lightweight metallic materials in order to reduce the total weight of the vehicles without affecting their performances. For the theoretical and experimental researches presented here, among these materials the AZ31B magnesium alloy has been chosen, a representative alloy for the magnesium-zinc-aluminium alloy system. The results of the theoretical researches, made on finite elements models, were validated by means of experimental researches consisting of tensile tests, forming limit curves determination tests and AZ31B magnesium alloy drawing, respectively.


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