Phase Equilibria of the Al^sub 2^O^sub 3^-CaF^sub 2^-FeO^sub n^ System

Metallurgical and Materials Transactions;  February 1, 2004 ;     700+ words ......preliminary experiments. FeO.Al^sub 2^O^sub 3^ was prepared by sintering the stoichiometric mixture of Al^sub 2^O^sub 3^, Fe^sub 2^O^sub 3^, and Fe at 1723 K for 20 hours in day Ar. The formation of FeO-Al^sub 2^O^sub 3^ was determined by X-ray powder...

Solid-Solid Reactions in the Ca^sub 3^(AsO^sub 4^)^sub 2^-Ca^sub 2^SiO^sub...

Metallurgical and Materials Transactions;  February 1, 2006 ;     700+ words ......5^(AsO^sub 4^)^sub 2^(SiO^sub 4^) (1:1) and Ca^sub 8^(AsO^sub 4^)^sub 4^(SiO^sub 4^) (1:2). The formation of stable intermediate salts with...problematic. During the past few decades, regulations for SO^sub 2^ and CO2 emissions from nonferrous smelters have ...

Modeling of the Solubilities of NiO/NiAl^sub 2^O^sub 4^ and FeO/FeAl^sub...

Metallurgical and Materials Transactions;  February 1, 2004 ;     700+ words ......Ni-containing complexes Na^sub 2^NiF^sub 4^ and Na^sub 4^NiF^sub 6^, and the Fe-containing solutes FeF^sub 2^, Na^sub 2^FeF^sub 4^, and Na...investigated. In the FeAl^sub 2^O^sub 4^ case, they failed to identify the Fe-containing solute species in ...

Reduction kinetics of Fe^sub 2^MoO^sub 4^ fine powder by hydrogen in a...

Metallurgical and Materials Transactions;  October 1, 2003 ;     700+ words ...Iron molybdate (Fe^sub 2^MoO^sub 4^) powders with an average partiele...or - 17 kJ/mol. The crystal size of the Fe^sub 2^Mo powder produced at lower temperatures...feasibility of producing nanostructured Fe^sub 2^Mo in a fluidized-bed reactor by the reduction...

The Effect of Carbon in Slag on Steel Reoxidation and Carbon Analysis by...

Metallurgical and Materials Transactions;  December 1, 2004 ;     700+ words ......carbon in CaO-SiO^sub 2^Al^sub 2^O^sub 3^-MgO-MnO-Fe^sub t^O slag systems on their Fe^sub t^O and MnO activity coefficients, representing the...for steel reoxidation. The activity coefficients of Fe^sub t^O and MnO showed not only a sharp increment but...

The Solubility of Cr^sub 2^O^sub 3^ in Calcium Ferrite Slags at 1573 K

Metallurgical and Materials Transactions;  April 1, 2004 ;     700+ words ......spinel containing Cr^sub 2^O^sub 3^, Fe^sub 2^O^sub 3^, and a small amount of MgO...the join CaO-Cr^sub 2^O^sub 3^-2CaO-Fe^sub 2^O^sub 3^ in the system CaO-Cr^sub 2^O^sub 3^-Fe^sub 2^O^sub 3^ at elevated temperature...

Orientation Analysis of Hexagonal Dendrite Formed from an Undercooled Melt...

Metallurgical and Materials Transactions;  January 1, 2008 ;     700+ words ......containerless solidification of α-Fe^sub 2^Si^sub 5^ was conducted using an electromagnetic...despite the tetragonal structure of α-Fe^sub 2^Si^sub 5^. The growth velocity analysis...solidification in the anisotropic α-Fe^sub 2^Si^sub 5^ with c/a = ...

Quantitative characterization of the microstructure of two-phase TiB^sub...

Metallurgical and Materials Transactions;  November 1, 2003 ;     700+ words ......determined to quantitatively describe the connectivity of the TiB^sub 2^ minor phase around the Al^sub 2^O^sub 3^ major phase. The results illustrate that, in spite of partial...ceramic fabrication. For example, sintering aids such as B^sub 4^C assist in the pressureless sintering of ...

In-Situ Observation of Fe^sub 0.94^O Reduction at High Temperature with...

Metallurgical and Materials Transactions;  April 1, 2007 ;     700+ words ...Highly (100) oriented Fe^sub 0.94^O, when physically contacted with...place anywhere on the surface of the Fe^sub 0.94^O at temperatures above 1173 K...nor spread from the point where the Fe^sub 0.94^O-graphite were in physical contact...

Thermodynamic Investigations of Cr^sub 3^C^sub 2^ and Reassessment of the...

Metallurgical and Materials Transactions;  December 1, 2004 ;     700+ words ......e., Cr^sub 23^C^sub 6^, Cr^sub 7^C^sub 3^, and Cr^sub 3^C^sub 2^.[1,2] The carbides are all nonstoichiometric compounds...six determinations of the Gibbs energy of formation of Cr^sub 3^C^sub 2^ by the use of the galvanic cell technique (four of them using ...

Influence of Ni Content on the Microstructure and Dry Sliding Wear...

Metallurgical and Materials Transactions;  March 1, 2007 ;     700+ words ......microspalling or pullout of the cracked Cr^sub 13^Ni^sub 5^Si^sub 2^ primary dendrites. The Cr^sub 13^Ni^sub 5^Si^sub 2^/γ alloys have extremely low load sensitivity of wear...conducted on the wear behavior of intermetallic compounds such as Fe^sub 3^Al, FeAl, ...

Influence of Silicon on the Wetting-Bond Strength-Structure Relationship...

Metallurgical and Materials Transactions;  November 1, 2006 ;     700+ words ......interface of the Al/Al^sub 2^O^sub 3^ joints. II. EXPERIMENTAL...12.11 wt pet Si, 0.61 wt pet Fe, 0.2 wt pet Zn, 0.007 wt pet...composition: 99.9085 wt pet Al^sub 2^O^sub 3^. 0.009 wt pet CaO, 0.053 wt pel SiO^sub 2^, 0.0029 wi pet MgO. 0.023 wt pet Fe^sub ...

Experimental study of phase equilibria in the PbO-ZnO"Fe^sub 2^O^sub...

Metallurgical and Materials Transactions;  August 1, 2003 ;     700+ words ......multicomponent system PbO-ZnO-CaOSiO^sub 2^-FeO-Fe^sub 2^O^sub 3^ in air have been conducted...liquidus in two pseudoternary sections ZnO-"Fe^sub 2^O^sub 3^"-(PbO + CaO + SiO^sub 2...liquidus in the PbO-ZnO-CaO-SiO^sub 2^-FeO-Fe^sub 2^O^sub ...

Preparation and Properties of Ti^sub 50^Cu^sub 28^Ni^sub 15^Sn^sub 7^ Bulk...

Metallurgical and Materials Transactions;  August 1, 2008 ;     700+ words ......crack initiation sites. Thus, typical brittle failure of Ti^sub 50^Cu^sub 28^Ni^sub 15^Sn^sub 7^ BMG was observed and resulted in relatively low fracture...liquid region have been prepared successfully in Zr-, Ln, Fe-, Co-, Ni-, Cu-, Pd-, and Mg-based alloy systems.[1] The ...

Crystallization of Amorphous Co^sub 78-x^Mn^sub x^B^sub 10^Si^sub 12^...

Metallurgical and Materials Transactions;  February 1, 2007 ;     700+ words ......it was previously shown that devitrification Co^sub 68^Mn^sub 10^B^sub 10^Si^sub 12^ was triggered by nucleation of the metastable Co^sub 2^MnSi crystals below 500 C and followed by decomposition Co^sub 2^MnSi and concurrent nucleation of Co and eutectic reaction...an inlermetallic ...