Results 91 to 100 of about 1,100,479 (387)

Comparative Wear and Friction Analysis of Sliding Surface Materials for Hydrostatic Bearing under Oil Supply Failure Conditions

Advanced Engineering Materials, EarlyView.
Hydrostatic bearings excel in high‐precision applications, but their performance hinges on a continuous external supply. This study evaluates various material combinations for sliding surfaces to mitigate damage during supply failures or misalignment and to discover the most effective materials identified for enhancing the reliability and efficiency of
Michal Michalec, Lukáš Daněk, Jan Foltýn, Petr Svoboda, Carsten Gachot, Martin Hartl, Ivan Křupka   +6 more
wiley   +1 more source

Product Durability in Markets with Consumer Lock-in [PDF]

, 2009
This paper examines a two-period duopoly where consumers are locked-in by switching costs that they face in the second period. The paper's main focus is on the question of how the consumer lock-in affects the firms' choice of product durability.
Langenberg, Tobias
core   +2 more sources

A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?

Advanced Engineering Materials, EarlyView.
Researchers investigate black phosphorous (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli, Manel Rodríguez Ripoll, Sabine Schwarz, Ali Erdemir, Maria Clelia Righi, Carsten Gachot   +5 more
wiley   +1 more source

Standardized definitions of structural deterioration and valve failure in assessing long-term durability of transcatheter and surgical aortic bioprosthetic valves: a consensus statement from the European Association of Percutaneous Cardiovascular Interventions (EAPCI) endorsed by the European Societ

European Heart Journal, 2017
Hancock J, Mehilli J, Byrne RA, Baumbach A, Kappetein AP, Windecker S, Bax J, Haude M. Standardized definitions of structural deterioration and valve failure in assessing long-term durability of transcatheter and surgical aortic bioprosthetic valves: a ...
D. Capodanno, A. Petronio, B. Prendergast, H. Eltchaninoff, A. Vahanian, T. Modine, P. Lancellotti, L. Søndergaard, P. Ludman, C. Tamburino, N. Piazza, J. Hancock, J. Mehilli, R. Byrne, A. Baumbach, A. Kappetein, S. Windecker, J. Bax, M. Haude   +18 more
semanticscholar   +1 more source

A Perspective on Powder Metallurgy and Additive Manufacturing of High‐Nitrogen Alloyed Stainless Steels

Advanced Engineering Materials, EarlyView.
This perspective article explores an innovative powder metallurgical approach to producing high‐nitrogen steels by utilizing a mixture of stainless steel and Si3N4. This mixture undergoes hot isostatic pressing followed by direct quenching. The article also examines adapting this method to laser powder bed fusion (PBF‐LB/M) to overcome nitrogen ...
Louis Becker, Felix Radtke, Jonathan Lentz, Simone Herzog, Christoph Broeckmann, Sebastian Weber   +5 more
wiley   +1 more source

On Durability of SHCC

Journal of Advanced Concrete Technology, 2010
Strain-hardening cement-based composites (SHCC) resist increased tensile stress after first crack formation, over a significant range of tensile strain. This increased strength and strain capacity is achieved by effective crack bridging by fibres, across multiple cracks of widths in the micro-range.
Van Zijl G.P.A.G., Wittmann F.H.
openaire   +4 more sources

Advances in Hybrid Icing and Frosting Protection Strategies for Optics, Lens, and Photonics in Cold Environments Using Thin‐Film Acoustic Waves

Advanced Engineering Materials, EarlyView.
This article provides a comprehensive overview of fundamentals and recent advances of transparent thin‐film surface acoustic wave technologies on glass substrates for monitoring and prevention/elimination of fog, ice, and frost. Fogging, icing, or frosting on optical lenses, optics/photonics, windshields, vehicle/airplane windows, and solar panel ...
Hui Ling Ong, Zhangbin Ji, Luke Haworth, Yihao Guo, Jaime del Moral, Stefan Jacob, Ana Borras, Agustin R. Gonzalez‐Elipe, Jikai Zhang, Jian Zhou, Glen McHale, Yong‐Qing Fu   +11 more
wiley   +1 more source

The Influence of Construction Parameters on the Temperature Field of Rock-Filled Concrete

Buildings
This paper investigates the distribution characteristics and variation rules of the temperature field of rock-filled concrete during pouring. Based on the thermal model accounting for the hydration rate, it uses ANSYS software to study the influence ...
Juanjuan Quan, Zhiqi Miao, Haipeng Yang, Tao Luo, Tianqi Zhang, Gang Li   +5 more
doaj   +1 more source

The Durability of Buildings

, 1958
The durability of buildings is a subject of timely importance in view of current changes in building types. The meaning of the term is explored. This leads to the suggestion that it is the question, “How much durability do you want in a building?” that must be faced by the designer.
Legget, R. F., Hutcheon, N. B.
openaire   +3 more sources

Nanoparticle‐Coated X2CrNiMo17‐12‐2 Powder for Additive Manufacturing – Part I: Surface, Flowability, and Optical Properties of SiC, Si, and Si3N4 Coated Metal Powders

Advanced Engineering Materials, EarlyView.
Herein, silicon‐based nanoparticle coatings on X2CrNiMo17‐12‐2 metal powder are presented. The coating process scale, process parameters, nanoparticle size (65–200 nm) as well as the coating amount are discussed regarding powder properties. The surface roughness affects the flowability, while reflectance depends on the coating material and surface ...
Arne Lüddecke, Nick Hantke, Harald Zetzener, Jan T. Sehrt, Arno Kwade   +4 more
wiley   +1 more source