Results 61 to 70 of about 7,770 (217)
In Vitro Mechanical Tests for Modern Dental Ceramics
The fracture resistance of all-ceramic restorations is one of the major concerns in clinical applications of these materials. Before initiating a time-consuming and costly clinical investigation, an in vitro study can help to estimate the in vivo ...
L. Sadighpour +2 more
doaj
Ultrasonic fracturing (UF) can be used to form crack networks for oil or gas in the mining industry and hard rock excavation. In this paper, the three-dimensional internal laser-engraved crack method (3D-ILC) is introduced to make penny-shaped internal ...
Haijun Wang +4 more
doaj +1 more source
ABSTRACT This study experimentally and numerically investigates fatigue damage in additively manufactured 316L stainless steel produced by selective laser melting using the powder bed fusion–laser beam process. More than 100 specimens were tested under tensile and strain‐controlled fatigue loading to evaluate the effects of surface condition, hot ...
M. Subasic +12 more
wiley +1 more source
Scanning Electron Microscopy Fractography Analysis of Fractured Hollow Implants
Fracture of the implant is one of the possible complications affecting dental implants; it is a rare event but of great clinical relevance. The aim of the present study was to perform a scanning electron microscopy (SEM) fractography evaluation of 7 ...
TRAINI T +11 more
core +1 more source
Biography of Are Tsirk (1937-2015): Flintknapper and scholar
Are Tsirk was as much a scholar as he was a flintknapper. These disciplines were intertwined and expressed in his experimental research, by way of his exploration of fractography, and his replication of stone tools which spanned the archaeological record
Steve Adams
doaj +1 more source
Breakage Characterization of Magnetite under Impact Loads and Cyclic Impact Loading
A series of impact compression tests were conducted to study the breakage characteristics of magnetite, as well as the impact pressure on its strain rate and dynamic compressive strength.
Liang Si, Yijun Cao, Guixia Fan
doaj +1 more source
Abstract Purpose In metal–ceramic restorations, the substructure fabrication method and design may affect the prognosis of the prosthesis. This study evaluated and compared the fracture resistance of metal–ceramic restorations fabricated with different substructure fabrication methods using two different alloy powders and designs.
Young‐Hoon Lee +4 more
wiley +1 more source
Quantitative Fractography - Well Spring of Intimate Knowledge in Fatigue Crack Growth History
Quantitative fractography of fatigued structure parts can offer very useful and valuable information on the fatigue process. One of main contribution of this experimental method is a detailed description of fatigue crack growth in time and in space.
Ivan Nedbal, Jiri Kunz, Jan Siegl
core +1 more source
Indirect Tensile Test of Layered Marble and Analysis of Fracture Morphology and Mechanism
:With the aid of MTS815,large scale laser profilometer and SEM testing system,indirect tensile tests,fractography and meso fracture mechanism analysis were carried out on layered marbles taken from transportation tunnel of JinpinⅡ hydropower station ...
裴建良, 苏立, 刘建锋, 左建平
doaj
Fractographic Analysis Of Selected Boron Steels Subjected To Impact Testing
In this paper dynamic properties of low-alloy boron steels – Hardox 500, B27 and HTK 900H in delivered state (after hardening and tempering) are considered.
Dudziński W. +2 more
doaj +1 more source

