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7 Jun 2010: This indeed was detected by the diffraction measurements and identified aspredominantly magnetite (Fe2.9O4) and small amounts of hematite (Fe2O3).

7 Jun 2010: Thin scale of Cr-rich oxide, presumably Cr2O3, forms on the specimen surface of 9Cr-3WVNb steel with 3%Pd in steam at 650oC, while thick scale consisting of magnetite in ... No evidence is found for the formation of Fe3O4 magnetite type oxide scale nor

7 Jun 2010: In boilers operating at 625C/32 MPa, maximum midwall temperatures can be as high as 500-525C, depending on magnetite deposits at the inside of the tube.

7 Jun 2010: Further, due to the growth of magnetite on the internal tube surface, mid wall temperatures could increase to about 600 C, if low alloy steels were used. ... VILHELMSEN, Lifetime Evaluation of Evaporator Tubes Exposed to Steam Oxidation, Magnetite

14 Feb 2020: It has been demonstrated that cementite can be made by carburising magnetite (Fe.

7 Jun 2010:  Metamagnetism. A brief history of magnetism. Lodestone or magnetite Fe3O4 known since 500-800 BC by the Greeks and Chinese.

16 Jul 2010: When other dense phases join in (for example, magnetite), or the ferromagnesian phases become very iron-rich, the fractionation density can become larger than the melt density, causing a decrease in

10 Apr 2011: When magnetite forms within the wall, a tubemay grow curved in an external magnetic field. ... 5D, with orange lepidocrocite, black magnetite,and GR2), just as in the tube wall.

10 Apr 2011: Black blotches and streaks indicate magnetite [Fe-(II)Fe(III)2O4], a species of intermediate oxidation.

6 Feb 2008: Fifth Edition, last update October 18, 2006. 2. Lessons In Electric Circuits, Volume I – DC. By Tony R. Kuphaldt. Fifth Edition, last update October 18, 2006. i. c2000-2008, Tony R. Kuphaldt. This book is published under the terms and conditions