Results 31 to 40 of about 468 (126)
Nanoenergetic Materials for MEMS: A Review [PDF]
, 2007 New energetic materials (EMs) are the key to great advances in microscale energy-demanding systems as actuation part, igniter, propulsion unit, and power.
Alphonse, Pierre +5 more
core +2 more sources
Improving fatigue performance of rail thermite welds
EPJ Web of Conferences, 2010 Rail transport development offers economic and ecological interests. Nevertheless, it requires heavy investments in rolling material and infrastructure.
Winiar L. +3 more
doaj +1 more source
Kodiranje šinskih defekata prema IRS 70712 [PDF]
, 2021 Šinski defekti usled zamora čelika pri kotrljanju točkova dobili su značajno mesto u Priručniku za šinske defekte (Handbook of Rail Defects) u okviru UIC Code 712 iz 2002. godine.
Brajović, Ljiljana +3 more
core +1 more source
Influence of mould preheating on solidification stress of railway aluminothermic welding by casting simulation aluminothermic welding by casting simulation [PDF]
, 2023 Aluminothermic welding has been used to connect railway rails for over a century. This method has several advantages, including its versatility, the tightness of the weld it creates, and its ease of execution. To complete the procedure, no further power source is necessary.
Jovanović, Gvozden +4 more
openaire
A MAPOD approach for phased array ultrasonic inspections applied to aluminothermic welds in rails [PDF]
, 2018 Nowadays, long welded railway rails are achieved by means of aluminothermic and flush-butt welding processes. Compared to bolted joints, welds proved to be effective in terms of reduced wheel damage, ride comfort and maintenance. In rails, surface cracks often initiate within the welded and the heat affected regions of the foot, leading to brittle ...
Carboni, M.
openaire +3 more sources
INVESTIGATION OF HEAT-AFFECTED ZONES OF THERMITE RAIL WELDINGS [PDF]
, 2023 The paper investigates the heat-affected zone (HAZ) of several rail joints executed by thermite rail welding (TW). The examined rail profile was 54E1 (UIC54). The rail steel categories were different: R260 and R400HT.
Brautigam, András +6 more
core +1 more source
Carbides and Nitrides of Zirconium and Hafnium. [PDF]
, 2019 Among transition metal carbides and nitrides, zirconium, and hafnium compounds are the most stable and have the highest melting temperatures. Here we review published data on phases and phase equilibria in Hf-Zr-C-N-O system, from experiment and ab ...
Hong, Qi-Jun +3 more
core +1 more source
SRF Cavity Fabrication and Materials
, 2015 The technological and metallurgical requirements of material for highgradient superconducting cavities are described. High-purity niobium, as the preferred metal for the fabrication of superconducting accelerating cavities, should meet exact ...
Singer, W
core +1 more source
Battery Energy, Volume 4, Issue 5, September 2025.Advancing Anode Materials for Next‐Generation Energy Storage Applications. ABSTRACT Silicon (Si)‐based materials have emerged as promising alternatives to graphite anodes in lithium‐ion (Li‐ion) batteries due to their exceptionally high theoretical capacity.
Norshahirah Mohamad Saidi +5 more
wiley +1 more source
Analysis of factors affecting fractures of rails welded by alumino-thermic welding [PDF]
Transport Problems, 2008 On Latvian Railway the use of the alumino-thermic welding is widespread using the Elektro-Thermit Company technology. Today it is a basic method for rail joints on railway switches.
Sergejs MIKHAYLOVS, Dijs SERGEJEVS
doaj