Results 141 to 150 of about 34,934 (272)
Mechanisms of rolling contact spalling [PDF]
The results of a study aimed at analyzing the mechanical material interactions responsible for rolling contact spalling of the 440 C steel, high pressure oxygen turbopump bearings are presented.
Bhargava, V. +4 more
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Geoarchaeology, Volume 41, Issue 3, May/June 2026.ABSTRACT The archaeological site of Las Estacas Cave (NW Tenerife, Canary Islands) preserves some of the earliest human occupations in Tenerife, dating to the 2nd century CE, spanning the entire pre‐European time range up to the 15th century. Using soil micromorphology, this study applies a geoarchaeological approach to reconstruct site formation ...
Pedro García‐Villa +2 more
wiley +1 more source
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Composite materials hold significant potential for abrasive sealing, yet composite materials used for abrasive sealing fall short in service durability under extreme environments. Here, a controllable strategy for adjusting pore structure is proposed, aiming to design a YSZ(ESP)/BN@ZrO2‐polyester coating with hybrid micron/nanometer ...
Shuang Yu +8 more
wiley +1 more source
Oxidation behavior of FeAl+Hf,Zr,B [PDF]
The oxidation behavior of Fe-40Al-1Hf, Fe-40Al-1Hf-0.4B, and Fe-40Al-0.1Zr-0.4B (at. percent) alloys was characterized after 900, 1000, and 100 C exposures.
Doychak, Joseph, Smialek, James L.
core +1 more source
Which Knowledge Do Pre‐Service Teachers Need to Meaningfully Engage in Modeling?
Journal of Research in Science Teaching, Volume 63, Issue 4-5, Page 352-371, May 2026.ABSTRACT Modeling involves a set of scientific practices that pre‐service science teachers struggle with. These practices involve constructing, predicting, testing, and revising models. Engaging meaningfully in modeling practices leads modelers to gain new insights about phenomena.
Paul Engelschalt +4 more
wiley +1 more source
Thermal vs. Haline Drivers of Restratification in the Labrador Sea
Journal of Geophysical Research: Oceans, Volume 131, Issue 5, May 2026.Abstract The Labrador Sea is a vital component of global ocean circulation, hosting vigorous deep convection that can mix to deeper than 2,000 m. Features that drive convection are widely studied, but a lack of high‐resolution, in situ observations hinder our understanding of how finescale dynamics influence the convective process and trigger ...
H. Jaques +4 more
wiley +1 more source
Jixie chuandong, 2014 Due to the moving loads and complex spatial structure characteristics of helical gears,it is difficult to acquire and diagnose the vibration characteristics of the helical gear with spalling defect.
王双不, 蒋汉军, 邵毅敏
doaj
Solutions for discharge chamber sputtering and anode deposit spalling in small mercury ion thrusters [PDF]
Proposed solutions to the problems of sputter erosion and sputtered material spalling in the discharge chamber of small mercury ion thrusters are presented.
Hiznay, D. J., Power, J. L.
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Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.Abstract The basal strata of the orbitally defined Layered Sulfate unit (LSu) in Gale crater, Mars, marks the end of a major mineralogical transition from clay‐to sulfate‐bearing stratigraphy. This has previously been attributed to a period of significant aridification of Gale's climate. Here, we present ground‐based observations by the Curiosity rover
Amelie L. Roberts +27 more
wiley +1 more source
Comparison of isothermal and cyclic oxidation behavior of twenty-five commercial sheet alloys at 1150 C [PDF]
The cyclic and isothermal oxidation resistance of 25 high-temperature Ni-, Co-, and Fe-base sheet alloys after 100 hours in air at 1150 C was compared.
Barrett, C. A., Lowell, C. E.
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