Results 71 to 80 of about 7,059 (228)
Abstract This study aimed to evaluate the compressive and adhesive strengths of ceramic restorations (PICN and 5Y‐PSZ zirconia) cemented with one of three types of cements: conventional glass ionomer cement (GI), resin‐modified glass ionomer cement (RM‐GI), and self‐adhesive resin cement (R).
Letícia Moreschi +5 more
wiley +1 more source
Delayed fracture of silicon: Silicon sheet growth development for the large area silicon sheet task of the low cost silicon solar array project [PDF]
Bar specimens were cut from ingots of single crystal silicon, and acid etched prior to testing. Artificial surface flaws were introduced in specimens by indentation with a Knoop hardness tester.
Chen, T. J., Knapp, W. J.
core +1 more source
Al–Si alloys are particularly in demand for automotive and electronic applications, thanks to their excellent wear and thermal properties. Nevertheless, when processed by conventional methods with low cooling rates, the coarse primary Si phases are responsible for increasing brittleness and inducing crack propagation.
Layla Shams Tisha +3 more
wiley +1 more source
Snap-8 mercury corrosion and materials research, volume iii topical report, jun. 1960 - dec. 1962 [PDF]
SNAP-8 materials research - mercury corrosion capsule tests of ferritic alloys for mass transfer, stress corrosion, mode of attack, and mechanical ...
Arabian, R. V. +3 more
core +1 more source
Strain based design considerations for spiral welded pipelines [PDF]
Pipelines are constructed in hostile environments where the occurrence of imposed plastic deformations can necessitate a strain based design approach. Under such conditions not only the strength and toughness properties have to be considered; also the ...
De Waele, Wim +3 more
core
Regression analysis of material properties and hardness of dense boron carbide
Abstract Material properties directly affect the final performance of the produced articles. This study aims to establish a correlation between materials properties and hardness of boron carbide samples. Ten different boron carbide powders were sintered to high densities by spark plasma sintering, and material properties (grain size, density ...
M. Fatih Toksoy, Richard A. Haber
wiley +1 more source
Short-term hot-hardness characteristics of five case hardened steels [PDF]
Short-term hot-hardness studies were performed with carburized and hardened AISI 8620, CBS 1000, CBS 1000M, CBS 600, and Vasco X-2 steels. Case and core hardness measurements were made at temperatures from 294 to 811 K (70 to 1000 F).
Anderson, N. E., Zaretsky, E. V.
core +1 more source
Comparisons of modified Vasco X-2 and AISI 9310 gear steels [PDF]
Endurance tests were conducted with four groups of spur gears manufactured from three heats of consumable electrode vacuum melted (CVM) modified Vasco X-2. Endurance tests were also conducted with gears manufactured from CVM AISI 9310. Bench type rolling
Townsend, D. P., Zaretsky, E. V.
core +1 more source
The influence of heterogenous porosity on silicon nitride/steel wear in lubricated rolling contact [PDF]
Heterogeneous porosity is detected on the surface and subsurface of hot isostatically pressed (HIPed) silicon nitride spherical rolling elements. The extent of the localised porosity accounts for an area of 6% of the rolling element surface and 4% of the
Hadfield, M, Kang, J
core
Objetivo: Determinar in vitro si la microdureza superficial Knoop de las manchas blancas mejora con la infiltración de resinas de baja viscosidad en comparación con la microdureza del esmalte sano.
María Eugenia Alejandra Barrionuevo +2 more
doaj +1 more source

