scholarly journals RESEARCH OF HIGHLY FUNCTIONAL CEMENT THAT REDUCED INTERSTITIAL LIQUID PHASE CONTENT　（PART 1 CHARACTERISTICS OF LOW-ACTIVATION CEMENT AND ITS CLINKER FORMATION MECHANISM）

2009 ◽  
Vol 63 (1) ◽  
pp. 55-61
Author(s):  
Koki ICHITSUBO ◽  
Hiroki YAMASHITA ◽  
Takao TANOSAKI ◽  
Shinya SATAKE
Keyword(s):  
Liquid Phase ◽  
Formation Mechanism ◽  
Phase Content ◽  
Interstitial Liquid ◽  
Content Part

D-Optimal Mixture Design of Fe-Based Pre-Alloyed Diamond Bit Matrix with Low Liquid Phase Content

2021 ◽  
Vol 43 (4) ◽  
pp. 265-277
Author(s):  
Zhiming Wang ◽  
Xiaohong Fang ◽  
Wucheng Sun ◽  
Longchen Duan ◽  
Songcheng Tan
Keyword(s):  
Liquid Phase ◽  
Mixture Design ◽  
Phase Content ◽  
Diamond Bit

Phase Evolution and Formation Mechanism in Acicular Mullite Prepared from Kaolinite via Wet Chemistry Method

2010 ◽  
Vol 152-153 ◽  
pp. 643-647
Author(s):  
Xiao Chun Dai ◽  
Zhu Fa Zhou ◽  
Shu Mei Wang ◽  
Ran Ran Tian ◽  
Chun Rong Wang ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Formation Mechanism ◽  
Phase Evolution ◽  
Molar Ratio ◽  
Wet Chemistry ◽  
Chemistry Method ◽  
Acicular Mullite

Mullite was synthesized by firing precursors prepared from kaolinite via a wet chemistry method at various temperatures. The acicular mullite grains were formed in samples with addition of AlF3 by this process. The phase evolution and morphology of the fired samples were investigated. For the samples without AlF3, the mullitization began to occur at 1300 and almost completed at 1550 , the grains formed were normal-shaped. For the samples with AlF3, acicular mullite was formed, and mullitization began to occur at 1100 and completed at 1250 . The growth of the acicular mullite was associated with a liquid phase. The formed acicular mullite was alumina-rich and had a composition of about 73.4 wt% Al2O3 and 26.6 wt% SiO2 (Al2O3/SiO2=1.65, molar ratio).

Origin of the Y2Ba1Cu1O5 free region in melt-textured Y–Ba–Cu–O oxides

1995 ◽  
Vol 10 (9) ◽  
pp. 2235-2240 ◽  
Author(s):  
Chan-Joong Kim ◽  
Hee-Gyoun Lee ◽  
Ki-Baik Kim ◽  
Gye-Won Hong
Keyword(s):  
Liquid Phase ◽  
Formation Mechanism ◽  
Peritectic Reaction ◽  
Peritectic Temperature ◽  
Incongruent Melting ◽  
Slow Cooling ◽  
Free Region

In order to understand the formation mechanism of the Y2BaCuO5 free region, microstructures concerning incongraent mehing and peritectic reaction were studied in melt-textured Y–Ba–Cu–O oxides. It is found that spherical pores form during incongruent melting of the YBa2Cu3O7−y phase into Y2BaCuO3 and a Ba–Cu–O liquid phase. As the melting goes on, liquid phase flows into the pores and then produces spherical liquid pockets containing a few Y2BaCuO5 particles. During slow cooling of the sample from the peritectic temperature to the temperature where YBa2Cu3O7−y phase is formed, the liquid pockets are converted into YBa2Cu3O7−y phase containing a few Y2BaCuO5 particles. Sometimes, remnant Ba–Cu–O liquid phase is present at the center part of the Y2BaCuO5 free regions due to the incomplete peritectic reaction. It is concluded that formation of spherical pores during incongruent melting of YBa2Cu3O7−y is responsible for the formation of the Y2BaCuO5 free regions.

Effect of liquid-phase content on the contact-mechanical properties of liquid-phase-sintered α-SiC

2007 ◽  
Vol 27 (6) ◽  
pp. 2521-2527 ◽  
Author(s):  
Oscar Borrero-López ◽  
Angel L. Ortiz ◽  
Fernando Guiberteau ◽  
Nitin P. Padture
Keyword(s):  
Mechanical Properties ◽  
Liquid Phase ◽  
Phase Content ◽  
Contact Mechanical

scholarly journals Effect of Iron Phase on Calcination and Properties of Barium Calcium Sulfoaluminate Cement

Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5813
Author(s):  
Jun Chang ◽  
Jixin Zhang ◽  
Yanchen Yuan ◽  
Kai Cui
Keyword(s):  
Compressive Strength ◽  
Liquid Phase ◽  
Eutectic Point ◽  
Material System ◽  
Phase Content ◽  
Calcium Sulfoaluminate Cement ◽  
Early Hydration ◽  
Calcium Sulfoaluminate ◽  
Eds Analysis ◽  
Iron Phase

In this paper, the effect of iron phase content on the calcination and properties of clinker and barium calcium sulfoaluminate cement was studied. The compressive strength of the samples was tested and combined with an XRD and SEM-EDS analysis, and the microstructure and composition of the barium calcium sulfoaluminate clinker and hydrated samples were characterized. The results showed that the oval-shaped particles were C2S minerals, and the hexagonal plate-shaped or rhombohedral dodecahedral particles were C2.75B1.25A3S¯. The Ba element was mainly distributed in the barium calcium sulfoaluminate region, and some of it was dissolved in C2S; the Fe element was distributed between C2.75B1.25A3S¯ and C2S crystal grains in the form of an iron phase solid solution, which acted as a solvent. When the iron phase composition was C4AF and the iron phase content was 5%, the early hydration and later strength were better, and the compressive strength after curing for 1, 3 and 28 days was 73.2 MPa, 97.9 MPa and 106.9 MPa, respectively. A proper amount of the iron phase can reduce the eutectic point of the sintered mature material system, increase the amount of liquid phase, reduce the viscosity of the liquid phase, effectively accelerate the migration of mineral ions and promote the formation and growth of minerals.

scholarly journals Effect of Thermodynamic Melt Formation Characteristics on Liquid Phase Fluidity of Iron Ore in the Sintering Process

Metals ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 404 ◽  
Author(s):  
Shengli Wu ◽  
Heping Li ◽  
Weili Zhang ◽  
Bo Su
Keyword(s):  
Liquid Phase ◽  
Iron Ore ◽  
Sintering Temperature ◽  
Mixed Phase ◽  
Al2o3 Content ◽  
Phase Content ◽  
Sintering Process ◽  
Test Device ◽  
Sintering Characteristics ◽  
Factsage Software

The liquid phase fluidity of iron ore is a vital index of fundamental sintering characteristics. In this paper, FactSage software and a visible microsintering test device were used to research the influence of the thermodynamic melt characteristics on the liquid phase fluidity under fixed CaO content conditions. The results show that the laws governing liquid phase fluidity of iron ore are significantly different with a fixed alkalinity and fixed CaO content of the sample. The liquid phase content at the sintering temperature is the most important thermodynamic melt formation characteristic affecting the liquid phase fluidity. In addition to the liquid phase content, other minerals also have a greater impact on liquid phase fluidity. Decreasing the viscosity of the liquid phase improves the liquid phase fluidity of the iron ore, and the effect of the SiO2 content of the iron ore on the mixed phase viscosity is greater than that of the Al2O3 content.

Relationship between liquid phase content and the orientation of PMNT ceramics by TGG method

2007 ◽  
Vol 22 (1) ◽  
pp. 91-93 ◽  
Author(s):  
Minghe Cao ◽  
Dongliang Li ◽  
Hua Hao ◽  
Hanxing Liu
Keyword(s):  
Liquid Phase ◽  
Phase Content
Sign in / Sign up

Export Citation Format

Share Document