Results 11 to 20 of about 406,954 (296)
Nanomaterials, 2021 The silicon/carbon nanotube (core/shell) nanocomposite electrode model is one of the most promising solutions to the problem of electrode pulverization in lithium-ion batteries.
Jee Soo Shim +3 more
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Improving the cycle fatigue life of spring steel by a novel thermal cycling process
Materials Research Express, 2021 A novel thermal cycling process was applied on the 65Mn spring to improve the cycle fatigue life. Results demonstrate that the cycle fatigue life after the thermal cycling process was improved from 3 times to 14 times, with an improvement of 470%.
Wangyang Hu +4 more
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Design of fixed blast valve for gas extraction grouting sealing device
Meikuang Anquan, 2021 Taking practice of gas extraction and sealing hole grouting in coal mine as background, a new type of blast valve was developed in view of the current situation that the existing blast valves can not meet the requirements of new grouting sealing device.
SUN Zhidong, MA Geng, SUN Yuning
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FATIGUE FAILURE OF NICKEL-TITANIUM INSTRUMENTS IN ENDODONTICS AND ITS INFLUENCING FACTORS
Česká Stomatologie a Praktické Zubní Lékařství, 2022 Introduction and aim: The fracture of Ni-Ti instruments is a complication that most dentists will sooner or later encounter in the dental office. There are mainly two basic mechanisms behind it and these are exceeding the cyclic fatigue limit, exceeding ...
A Jusku +6 more
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The Journal of Bone and Joint Surgery. British volume, 1961 1. Linear fractures of the shaft of the long bones are divided into four basic types: 1) transverse; 2) oblique transverse; 3) spiral; and 4) oblique. 2. The mode of production of these fractures is deduced on the grounds of simple mechanical theory: 1) transverse fractures are a result of angulation; 2) oblique transyerse are the result of ...
openaire +2 more sources
Self-replicating cracks: a collaborative fracture mode in thin films [PDF]
, 2014 Straight cracks are observed in thin coatings under residual tensile stress, resulting into the classical network pattern observed in china crockery, old paintings or dry mud. Here, we present a novel fracture mechanism where delamination and propagation
Bico, Jose +5 more
core +2 more sources
Role of disordered bipolar complexions on the sulfur embrittlement of nickel general grain boundaries [PDF]
, 2018 Minor impurities can cause catastrophic fracture of normally ductile metals. Here, a classic example is represented by the sulfur embrittlement of nickel, whose atomic-level mechanism has puzzled researchers for nearly a century.
Hu, Tao +4 more
core +3 more sources
Dental Materials, 1995 The principles of linear elastic fracture mechanics (LEFM) were developed in the 1950s by George Irwin (1957). This work was based on previous investigations of Griffith (1920) and Orowan (1944). Irwin (1957) demonstrated that a crack shape in a particular location with respect to the loading geometry had a stress intensity associated with it.
Department of Materials Science and Engineering, University of Florida, Gainesville, Florida, USA ( host institution ) +1 more
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Vibration Fatigue Properties and Fracture Mechanism of DD6 Single Crystal Superalloy
Cailiao gongcheng, 2018 Room Temperature vibration fatigue S-N curves of single crystal superalloy DD6 with[001] orientation was investigated and room temperature vibration fatigue limit was obtained. The fracture mechanism was studied by OM, SEM and EBSD. The results show that
LIU Li-yu +3 more
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In situ study of fracture behavior of ultrafine WC–Co cemented carbide
Materials Research Letters, 2017 The fracture behavior of ultrafine WC–Co cemented carbide was demonstrated by in situ tensile tests in a transmission electron microscope. Using two kinds of cemented carbide samples with and without previously introduced microcracks, the process from ...
Xingwei Liu +6 more
doaj +1 more source