A5007572124- Advanced ceramic materials synthesis
- Magnesium Oxide Properties and Applications
- Recycling and utilization of industrial and municipal waste in materials production
- Aluminum Alloys Composites Properties
- Layered Double Hydroxides Synthesis and Applications
- Microwave Dielectric Ceramics Synthesis
- Semiconductor materials and interfaces
- MXene and MAX Phase Materials
- Advanced materials and composites
- Intermetallics and Advanced Alloy Properties
- Concrete and Cement Materials Research
Wuhan University of Science and Technology
2020-2024
Northwestern Polytechnical University
2017
Abstract Effects of sintering atmosphere on the microstructure and strength magnesite were investigated using powder as raw material through X‐ray diffraction, scanning electron microscopy, mercury porosimetry measurement, so on. The results showed that strongly affected behavior magnesite. specimens sintered in reducing had more finer micro‐sized pores inside MgO particles compared with oxidizing at same temperature. Besides, refractory containing porous microparticles core–shell structure...
In this work, microporous MgO refractory aggregates with nano-sized pores were prepared by in situ decomposition method using Mg(OH)2 as raw material. The effects of firing temperatures (1600–1700°C) and compacting pressures (100–200 MPa) on the microstructures properties thoroughly studied. results showed that contained two types pore structures, which intra-particle sizes 180.0–230.0 nm formed inter-particle 1.5–3.0 μm derived from particle packing between pseudomorph particles,...
Abstract Five microporous mullite‐corundum refractory aggregates were prepared from Al(OH) 3 and kaolinite gangue through in situ decomposition synthesis technique. The effects of the sintering temperature (1400–1600°C) particle sizes raw materials (20.6–94.5 μm) on microstructures strengths investigated X‐ray diffractometer, scanning electron microscopy, energy‐dispersive spectrometer etc., to find out technological conditions be controlled industrial production. higher promoted reaction...
Abstract Seven microporous MgO–Al 2 O 3 ceramics with an Al content of 15–90 wt% were prepared using Al(OH) and calcined magnesite as raw materials. A wet mixing process was employed during sample preparation to transform the a larger particle size smaller Mg(OH) particles. The in situ decomposition synthesis method Kirkendall effect utilized produce control pore structure ceramics. There two kinds pores first one resulted from particles, which small equally distributed. Another originated...
Abstract The effect of spinel powder on the fracture behavior and mechanical properties lightweight magnesia‐based refractories containing microporous magnesia aggregates with high apparent porosity (37.4%) were investigated by wedge splitting test (WST) digital image correlation acoustic emission. With addition powder, showed a higher cold compressive strength compared pure refractories. From WST, increased specific energy characteristic length refractories, which improved crack propagation...
Abstract In this work, microporous MgO–Al 2 O 3 refractory aggregates were prepared with Mg(OH) and Al(OH) via the in situ decomposition synthesis method. The effect of addition on microstructure properties was investigated scanning electron microscope mercury intrusion porosimetry. results indicated that improved green density samples reaction sintering accelerated mass transport rate adding from 0 to 4.0 wt%. Besides, a small amount Al 3+ diffused into porous MgO particles, accelerating...
Abstract In this work, MgO‐MgAl 2 O 4 ceramic filters were fabricated from microporous MgO powder and α‐Al 3 micro‐powder, in which was prepared using Mg(OH) as initial raw material. With the micro‐powder content increased 0 to 15 wt%, tight packing reaction sintering between microparticles Al promoted formation growth of magnesium aluminate spinel necks, reduced apparent porosity filter skeletons, decreased pore size, improved strength filters. When further raised 20 thermal mismatch caused...