Results 21 to 30 of about 423 (127)

Microstructure investigation of cast irons with nodular and flake graphite via nanoindentation [PDF]

, 2023
The paper investigates and compares the local mechanical properties of microstructure components in grey iron EN GJL -300 and ductile iron EN GJS -500-7. The microstructure of both cast irons is analysed by LOM, and then certain microstructure components
Majerík, Jozef, Jozef Majerík, Barényi, Igor, Petruš, Peter, Igor Barényi, Peter Petruš   +5 more
core   +1 more source

Uranium Isotope Evidence for Persistent Global Ocean Anoxia Across the Ediacaran–Cambrian Transition in Siberia

Geobiology, Volume 24, Issue 5, September/October 2026.
ABSTRACT The enigmatic Ediacara biota represents Earth's earliest example of macroscopic, complex life, yet the driving forces promoting their mid‐Ediacaran evolution and subsequent extinction across the Ediacaran–Cambrian boundary remain speculative. If these were true animals requiring oxygen for aerobic respiration, their rise has often been linked ...
Andrew D. Doerrler, Tian Gan, Geoffrey J. Gilleaudeau, Matthew G. Pedersen, Natalia Bykova, Vasiliy Marusin, Natalia A. Ivanova, Boris Kochnev, Dimitriy V. Grazhdankin, Karel Kletetschka, Alan J. Kaufman   +10 more
wiley   +1 more source

Anaerobic Corrosion Phenomena of Cast Iron and Copper in Artificial Groundwater at Elevated Temperature

Materials and Corrosion, Volume 77, Issue 8, Page 1262-1277, August 2026.
This study examines corrosion of copper and cast iron as candidate canister materials for high‐level radioactive waste disposal in contact with bentonite suspension. The influence of three electrolyte compositions on corrosion behavior under repository‐relevant conditions is assessed.
Louisa Panjiyar, Martin Ende, Christiane Stephan‐Scherb   +2 more
wiley   +1 more source

Microwave‐Actuated CuS/CuCo2O4 Heterojunction Microneedles for Synergistic Eradication of Deep‐Seated Biofilms and Inflammatory Microenvironment Remodeling in Acne Treatment

Rare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Deep skin infections and dense biofilm barriers caused by Propionibacterium acnes (P. acnes) remain significant challenges in recurrent acne vulgaris, exacerbated by the poor stratum corneum penetration of conventional therapies and rising antibiotic resistance.
Bingran Qi, Chang Zheng, Shifeng Jin, Kezhu Li   +3 more
wiley   +1 more source

Estudo dos mecanismos de desgaste em ferramentas de nitreto de silício aplicadas no torneamento dos ferros fundidos vermicular e cinzento [PDF]

, 2009
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico.
Xavier, Fábio Antônio
core  

Thermal Shock Resistance of Cast Iron with Various Shapes of Graphite Precipitates [PDF]

, 2018
The influence of a shape of graphite precipitates in cast iron on the thermal shock resistance of the alloy was initially determined. Investigations included the nodular cast iron and the vermicular one, as well as the cast iron containing flake graphite.
Jakubus, A., Soiński, M. S.
core   +1 more source

A thorny evolution: first Triassic ammonoid with a ventral apertural elongated rostrum

Papers in Palaeontology, Volume 12, Issue 4, July/August 2026.
Abstract Ornamented terminal peristomes are common in ammonoids, but pronounced conch projections are rare, particularly in the Triassic. A new early Spathian assemblage from southeastern Idaho yielded two ammonoid specimens with an impressive terminal mid‐ventral elongated rostrum, documenting the first Triassic occurrence and one of the few ...
Arnaud Brayard, Emmanuel Fara, Nicolas Olivier, James F. Jenks, Kevin G. Bylund, Daniel A. Stephen, Noreen Kittrick, Emilie Steimetz, Gilles Escarguel   +8 more
wiley   +1 more source

Influência do teor de enxofre na microestrutura, nas propriedades mecânicas e na usinabilidade do ferro fundido cinzento FC 25 [PDF]

, 2005
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Mecânica.O presente trabalho trata da influência do enxofre sobre as alterações microestruturais, propriedades mecânicas e ...
Pereira, Adriana Ana
core  

Weldability of ductile cast iron using AISI-316L stainless steel ER rod [PDF]

, 2022
[EN] This paper analyzes the corrosion resistance and the mechanical and microstructural properties of a welded joint of ductile cast iron using AISI316L stainless steel as filler material and three different heat treatments: preheating at 250 and 450 ºC
Martínez-Corral, Aurora-María, Salas Vicente, Fidel, Pascual Guillamón, Manuel, Cárcel-Carrasco, Javier   +3 more
core   +1 more source

Drilling the Marathousa palaeo‐lake in Greece (Peloponnese): inferring the environmental context of a Middle Pleistocene archaeological site

Boreas, Volume 55, Issue 3, Page 866-884, July 2026.
The Megalopolis Basin is located in the central Peloponnese (Greece), a region that is situated along one of the primary Pleistocene biogeographical corridors for intracontinental hominin migration. The basin comprises several hundred metres of Plio‐Pleistocene sediments alternating between clastics and lignites.
Ines J. E. Bludau, Bernd Wagner, Uwe Kirscher, Maria Schindler, Charlotte Zachow, Johannes Schmidt, Niklas Leicher, Giovanni Muttoni, Serena Perini, Vangelis Tourloukis, Eleni Panagopoulou, Panagiotis Karkanas, Katerina Harvati, Annett Junginger   +13 more
wiley   +1 more source