Effect of the water-soluble calcium chloride on volumetric stability and thermal shock resistance of alumina-based castables
Source abstract
Abstract
Abstract As water-soluble calcium chloride (CaCl2) could be uniformly distributed in the castable compared with commercial CAC particles (25–55 μm), the effect of CaCl2 addition (0–2 wt%) on the distribution of CA6 and the properties of the alumina-based castables (especially thermal shock resistance and permanent linear change) after calcination at 1450 °C were investigated. It was found that the alumina-based castable with 1.5 wt% CaCl2 had the minimum PLC value of 0.18% and the maximum value of residual CMOR ratio (25%). The castable matrix fired at 800–1450 °C was examined by XRD to identify the phase evolution of castable with the addition of CaCl2. The 1450 °C fired castable matrix without and with 1.5 wt% CaCl2 additive was analyzed by SEM to determine the morphology evolution of CA6. The improved volume stability and enhanced thermal-shock resistance of the alumina-based castables containing CaCl2 additive has been illustrated through the formation of CA6 with smaller size and more uniform distribution.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · Aluminum Alloys Composites Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (42)
Show source-provided references
1. Castable refractory concretes10.1179/095066001101528439 ↗
2. Characterisation of microstructural evolutions in refractory castables by in situ high temperature ESEM10.1016/j.jmatprotec.2004.04.365 ↗
3. Fabrication and characterization of lightweight microporous alumina with guaranteed slag resistance10.1016/j.ceramint.2016.02.107 ↗
4. Microstructure evolution during the heating process and its effect on the elastic properties of CAC-bonded alumina castables10.1016/j.ceramint.2016.04.058 ↗
5. Coupling between kinetics of dehydration, physical and mechanical behaviour for high alumina castable10.1016/S0008-8846(00)00342-2 ↗
6. Influence of in situ phase formation on microstructural evolution and properties of castable refractories10.1016/S0272-8842(01)00121-3 ↗
7. Microstructural evolution in self-forming spinel/calcium aluminate-bonded castable refractories10.1016/S0955-2219(97)00182-9 ↗
8. Effect of curing temperature on volume stability of CAC-bonded alumina based castables10.1016/j.ceramint.2019.03.103 ↗
9. Thermomechanical behavior of high-alumina refractory castables with synthetic spinel additions10.1111/j.1151-2916.2000.tb01579.x ↗
10. Effect of micro-sized hydromagnesite addition on the properties of calcium aluminate cement-bonded castables10.1016/j.ceramint.2018.04.114 ↗
11. Implementation of image analysis on thermal shock and cavitation resistance testing of refractory concrete10.1016/j.jeurceramsoc.2010.07.041 ↗
12. Towards slag-resistant, anti-clogging and chrome-free castable for gas purging10.1016/j.ceramint.2016.09.005 ↗
13. Improvement in fatigue resistance performance of corundum castables with addition of different size calcium hexaluminate particles10.1016/j.ceramint.2018.09.155 ↗
14. CA6 impact on the corrosion behavior of cement-bonded spinel-containing refractory castables: an analysis based on thermodynamic simulations10.1016/j.ceramint.2014.12.020 ↗
15. Steel plant refractories containing alpha bond hydratable alumina binders
16. The influence of nano boehmite on spinel formation in the alumina-magnesia system at low temperatures
17. Novel features of Nanoscaled particles addition to alumina-magnesia refractory castables10.1111/j.1551-2916.2010.03792.x ↗
18. Xiao · 2011
19. Effect of nano-CaCO3 addition on mechanical properties and microstructure of corundum based castable
20. Effect of micro-sized calcium carbonate addition on volumetric stability and strength of corundum-based castables10.1111/ijac.12273 ↗
21. Advances in nanotechnology for refractories: when very small meets hot, heavy, and large
22. Mechanochemically synthesized high alumina cement and their implementation as low cement castables with some micro-fine additives10.1016/j.jascer.2014.11.004 ↗
23. Influence of high-energy ball milling and additives on the formation of sphere-like alpha-Al2O3 powder by high-temperature calcination10.1515/znb-2018-0080 ↗
24. Catalytic Fabrication of SiC/SiO2 coated graphite and its behaviour in Al2O3-C castable systems10.1016/j.ceramint.2019.05.139 ↗
25. Effects of aggregate microstructure on slag resistance of lightweight Al2O3-MgO castable10.1016/j.ceramint.2017.09.033 ↗
26. Dynamic slag/refractory interaction of lightweight Al2O3-MgO castable for refining ladle10.1016/j.ceramint.2015.03.026 ↗
27. Effects of alumina sources on the microstructure and properties of nitrided Al2O3-C refractories10.1016/j.ceramint.2014.12.127 ↗
28. Microstructure and phase composition of electrospun ZrO2/Al2O3 Nanofibers
29. Influences of NH4F additive and calcination time on the morphological evolution of alpha-Al2O3 from a milled gamma-Al2O3 precursor10.1515/znb-2017-0079 ↗
30. Preparation of hexagonal micro-sized alpha-Al2O3 platelets from a milled Al(OH)3 precursor with NH4F and NH4Cl additives10.1515/znb-2019-0080 ↗
31. Fabrication and abrasive wear behavior of ZrO2-SiC-Al2O3 ceramic10.1016/j.ceramint.2017.08.032 ↗
32. Research of Al2O3-SiC-C refractories as chromia-free lining for gasifier10.1016/j.ceramint.2016.06.038 ↗
33. Formation of nanocarbon structures in MgO-C refractories matrix: influence of Al and Si additives10.1016/j.ceramint.2016.09.029 ↗
34. Physical and mechanical characteristics of in-situ alumina/calcium hexaluminate composites10.1023/A:1006683421321 ↗
35. Study on stability of CaCl2 at high temperature
36. Effect of particle size change on hydration behavior of different calcium aluminate cements
37. Effect of particle size of calcium aluminate cement on volumetric stability and thermal shock resistance of CAC-bonded castables10.1016/j.jallcom.2018.09.128 ↗
38. Expansion behavior of cement-bonded alumina-magnesia refractory castables
39. In-depth microstructural evolution analyses of cement-bonded spinel refractory castables: Novel insights regarding spinel and CA6 formation10.1111/j.1551-2916.2012.05161.x ↗
40. Thermal shock behavior of flame-sprayed free-standing coatings based on Al2O3 with TiO2- and ZrO2-additions10.1111/j.1744-7402.2010.02535.x ↗
41. Fracture behaviour of alumina-calcium hexaluminate composites obtained by colloidal processing10.1016/S0955-2219(00)00123-0 ↗
42. Effect of micro-sized MgCO3 addition on properties of MgAl2O4 spinel containing castables10.1016/j.ceramint.2017.04.174 ↗