{"id":733,"date":"2024-07-04T11:16:03","date_gmt":"2024-07-04T03:16:03","guid":{"rendered":"https:\/\/frontbasic.sslab.org.cn\/ceramics\/?post_type=paper&#038;p=733"},"modified":"2024-07-04T11:16:04","modified_gmt":"2024-07-04T03:16:04","slug":"preparation-microstructure-and-properties-of-mgo-modified-al2tio5-porous-ceramics","status":"publish","type":"paper","link":"https:\/\/frontbasic.sslab.org.cn\/ceramics\/paper\/preparation-microstructure-and-properties-of-mgo-modified-al2tio5-porous-ceramics\/","title":{"rendered":"Preparation, microstructure and properties of MgO modified Al2TiO5 porous ceramics"},"content":{"rendered":"\n<p><strong>Author:<\/strong>Fanlei\u00a0Kong\u00a0<sup>ab1<\/sup>,\u00a0Xiujuan\u00a0Chen\u00a0<sup>ab1<\/sup>,Zhiheng\u00a0Ren\u00a0<sup>b<\/sup>,Zelin\u00a0Wu\u00a0<sup>b<\/sup>,Enge\u00a0Wang\u00a0<sup>ab<\/sup>,Guorui\u00a0Zhao\u00a0<sup>b<\/sup><\/p>\n\n\n\n<p><strong>Journal<\/strong>:Journal of Materials Research and Technology<\/p>\n\n\n\n<p><strong>DOI:<\/strong><a rel=\"noreferrer noopener\" href=\"https:\/\/doi.org\/10.1016\/j.jmrt.2024.06.210\" target=\"_blank\">https:\/\/doi.org\/10.1016\/j.jmrt.2024.06.210<\/a><\/p>\n\n\n\n<p><strong>Abstract \/&nbsp;\u6458\u8981<\/strong><\/p>\n\n\n\n<p>    <a>Al<sub>2<\/sub>TiO<sub>5<\/sub> porous ceramics with high <\/a>density and excellent thermal stability were prepared by the replica template method. MgO was introduced into Al<sub>2<\/sub>TiO<sub>5<\/sub> by adding magnesite (<a>MgCO<sub>3<\/sub><\/a>) to the slurry during the preparation process. The density and compressive strength of Al<sub>2<\/sub>TiO<sub>5<\/sub> porous ceramics with varying MgCO<sub>3<\/sub> content were studied. Additionally, the atomic-scale microstructure, thermal stability, and thermal shock resistance of the Al<sub>2<\/sub>TiO<sub>5<\/sub> porous ceramics with 2 wt.% MgCO<sub>3<\/sub> were investigated. The results show that the Al<sub>2<\/sub>TiO<sub>5<\/sub> porous ceramics doped with 2 wt.% MgCO<sub>3<\/sub> exhibit the highest density and compressive strength. The crystallographic orientation relationships of Al<sub>2<\/sub>TiO<sub>5<\/sub> (ATO) &#8211; Mg<sub>0.3<\/sub>Al<sub>1.4<\/sub>Ti<sub>1.3<\/sub>O<sub>5<\/sub> (MATO) and Mg<sub>0.3<\/sub>Al<sub>1.4<\/sub>Ti<sub>1.3<\/sub>O<sub>5 <\/sub>(MATO) &#8211; MgAl<sub>2<\/sub>O<sub>4 <\/sub>(MAO) are observed as (1 1 3) ATO \/\/ (1 1 2) MATO and [<ruby>1<rp>(-)<\/rp><\/ruby> <ruby>2<rp>(-)<\/rp><\/ruby> 1] ATO \/\/ [<ruby>1<rp>(-)<\/rp><\/ruby> <ruby>2<rp>(-)<\/rp><\/ruby> 1] MATO, (1 1 2) ATO \/\/ (2 2 0) MAO and [<ruby>1<rp>(-)<\/rp><\/ruby> <ruby>2<rp>(-)<\/rp><\/ruby> 1] MATO \/\/ [<ruby>1<rp>(-)<\/rp><\/ruby> 1 0] for the first time. In addition, the Al<sub>2<\/sub>TiO<sub>5<\/sub> porous ceramics with 2 wt.% MgCO<sub>3<\/sub> remain phase stable after annealing at 1200 \u00baC for 20 h, and the residual compressive strength is still higher than 88% after 20 cycles of the heating-cooling process at 1400 \u00b0C. These results indicate that the Al<sub>2<\/sub>TiO<sub>5<\/sub> porous ceramics containing 2 wt.% MgCO<sub>3<\/sub> have potential applications in the porous media combustion (PMC) field. <\/p>\n\n\n\n<p><strong>Keyword \/&nbsp;\u5173\u952e\u8bcd<\/strong><\/p>\n\n\n\n<p>Porous ceramics, Al<sub>2<\/sub>TiO<sub>5<\/sub>, Magnesite, Crystallographic orientation, Thermal stability<\/p>\n","protected":false},"featured_media":734,"template":"","acf":[],"_links":{"self":[{"href":"https:\/\/frontbasic.sslab.org.cn\/ceramics\/wp-json\/wp\/v2\/paper\/733"}],"collection":[{"href":"https:\/\/frontbasic.sslab.org.cn\/ceramics\/wp-json\/wp\/v2\/paper"}],"about":[{"href":"https:\/\/frontbasic.sslab.org.cn\/ceramics\/wp-json\/wp\/v2\/types\/paper"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/frontbasic.sslab.org.cn\/ceramics\/wp-json\/wp\/v2\/media\/734"}],"wp:attachment":[{"href":"https:\/\/frontbasic.sslab.org.cn\/ceramics\/wp-json\/wp\/v2\/media?parent=733"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}