Results 31 to 40 of about 140,919 (361)

Mechanical properties of materials used for temporary fixed dentures – in vitro study

open access: yesCurrent Issues in Pharmacy and Medical Sciences, 2017
Objectives. The objective of the research was to define the mechanical properties of currently marketed temporary filling materials. Methods. Eight temporary filling materials: Boston, Dentalon, Protemp II, Revotek LC, Structure 2, Structure 3, UniFast ...
Celej-Piszcz Elzbieta   +3 more
doaj   +1 more source

The effect of quenching and defects size on the HCF behaviour of Boron steel [PDF]

open access: yes, 2014
This work investigates the effect of natural and artificial surface defects and quenching on the fatigue strength of a Boron steel (22MnB5). A vast experimental campaign has been undertaken to study the high cycle fatigue behaviour and more specifically ...
ABRIVARD, Benjamin   +4 more
core   +5 more sources

Influence of the final temperature of investment healting on the tensile strength and Vickers hardness of CP Ti and Ti-6Al-4V alloy

open access: yesJournal of Applied Oral Science, 2007
The aim of the work was to evaluate the influence of the temperature of investment healting on the tensile strength and Vickers hardness of CP Ti and Ti-6Al-4V alloy casting. Were obtained for the tensile strength test dumbbell rods that were invested in
Pedro César Garcia Oliveira   +5 more
doaj   +1 more source

Effect of Solution Treatment and Aging Treatment on Mechanical Properties of 2060 Al-Li Alloy and Process Multi-Objective Optimization

open access: yesMetals, 2022
Solution and aging heat treatment are effective means to improve the mechanical properties of Al-Li alloys. The solution treatment and aging treatment tests of 2060 Al-Li alloy were carried out.
Jing Zhou   +3 more
doaj   +1 more source

Depth-sensing indentation tests in studying plastic instabilities [PDF]

open access: yes, 2004
This review surveys the phenomenon of plastic instabilities occurring in depth-sensing indentation measurements. Investigations presented focus on the characterization of Portevin-Le Chatelier type instabilities observed in different metal alloys during ...
Bobji   +14 more
core   +1 more source

Influence of firing temperature and duration on the hardness of dental zirconia for optimum selection of sintering conditions

open access: yesJournal of Applied Biomaterials & Functional Materials, 2022
Objective: In order to optimize the properties of dental zirconia, the sintering process involves firing zirconia to elevated temperatures for an extended time that can take several hours.
Omar Al-Surkhi, Zeina Hamad
doaj   +1 more source

Mechanical behavior analysis of a Friction Stir Welding (FSW) for welded joint applied to polymer materials [PDF]

open access: yesFracture and Structural Integrity, 2019
Welding is a technique of fusion joining the material involving a process of inter-molecular diffusion adhesion. Polymer welding is an assembly method among several known assembly techniques such as gluing. This welding process applies to thermoplastics;
Hachellaf Kaddour   +3 more
doaj   +1 more source

Properties of nanocellulose and zirconia alumina on polymethylmethacrylate dental composite

open access: yesDental Journal, 2023
Background: Polymethylmethacrylate (PMMA) is one of the synthetic polymers generally used for temporary jacket crown restorations because of its good translucency, making its aesthetic value higher, but its mechanical properties, such as hardness and ...
Eva Febrina   +3 more
doaj   +1 more source

Improvement design of existing threshing machine at Kilang Sawit Risda, Ulu Keratong [PDF]

open access: yes, 2020
Palm oil is very important in the agricultural and economic sectors in Malaysia. It’s origin is in the tropical rain forest region of West Africa, which the main belt runs through the southern latitudes of Cameron, Cote D’ ivoire, Ghana, Liberia, Nigeria,
Chen, Chit Wee   +8 more
core   +2 more sources

Physical properties of cutlet-clay ceramic [PDF]

open access: yes, 2011
A series of ceramic based on (x) cullet-(l00-x) clay has successfully been made by slip casting followed by sintering at 800°C. The sample density has been determined using the Archimedes method while their hardness by the Vickers Hardness Test ...
Md. Yusuf, Mohd. Nor   +2 more
core   +1 more source

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