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    Method for simulating intraplate volcanism
    3.
    发明授权
    Method for simulating intraplate volcanism 有权

    公开(公告)号：US11919814B2

    公开(公告)日：2024-03-05

    申请号：US17097708

    申请日：2020-11-13

    申请人： Wuhan University of Science and Technology

    发明人： Ao Huang ,  Yongshun Zou ,  Huazhi Gu

    IPC分类号： C04B32/00

    CPC分类号： C04B32/005

    摘要： The disclosure relates to a method for simulating intraplate volcanism. A technical solution is: mixing 47-60 wt % of calcium oxide powder, 35 wt % of alumina powder and 5-18 wt % of silica powder uniformly to obtain a mixed powder; putting the mixed powder in a corundum crucible, placing the crucible in a high-temperature furnace provided with an observation window outside which an industrial camera with a depression angle of 30-45° is provided, heating to 1,500-1,900° C. at a rate of 1-30° C./min under an air atmosphere at a normal pressure, holding for 0.5-5 h; recording intraplate volcanism formed by upwelling of a melt of the mixed powder along an inner wall of the crucible during the holding with the industrial camera to obtain a simulated process of the intraplate volcanism.

    PHASE CHANGE THERMAL STORAGE CERAMIC AND PREPARATION METHOD THEREOF
    6.
    发明申请
    PHASE CHANGE THERMAL STORAGE CERAMIC AND PREPARATION METHOD THEREOF 有权

    公开(公告)号：US20210384426A1

    公开(公告)日：2021-12-09

    申请号：US17167225

    申请日：2021-02-04

    申请人： Wuhan University of Science and Technology

    发明人： Meijie Zhang ,  Cangjuan Han ,  Huazhi Gu ,  Ao Huang ,  Lvping Fu

    IPC分类号： H01L45/00

    摘要： The disclosure relates to a phase change thermal storage ceramic having high service temperature and improved utilization rate and utilization efficiency of heat. It is prepared at a low cost with a simple, easy-to-industrially-realized method. A mixture is obtained by mixing and stirring evenly 50-85 wt % of fused mullite powder, 10-45 wt % of pretreated aluminum-silicon alloy powder, and 3-8 wt % of ball clay. A ceramic body is formed by press molding the mixture at 80-150 MPa. The ceramic body is cured at 25-28° C. and a relative humidity of 70-75 RH for 24-36 h, dried at 80-120° C. for 24-36 h, and held at 1,100-1,300° C. for 3-5 h to prepare the phase change thermal storage ceramic. The pretreated aluminum-silicon alloy powder is prepared by holding aluminum-silicon alloy powder in water vapor at 0.02-0.20 MPa for 0.5-3 h to impregnate in an alkaline silica sol and drying the impregnated powder.

    TITANIUM-CONTAINING CALCIUM HEXAALUMINATE MATERIAL AND PREPARATION METHOD THEREOF
    7.
    发明申请
    TITANIUM-CONTAINING CALCIUM HEXAALUMINATE MATERIAL AND PREPARATION METHOD THEREOF 有权

    公开(公告)号：US20210284579A1

    公开(公告)日：2021-09-16

    申请号：US17195581

    申请日：2021-03-08

    申请人： Wuhan University of Science and Technology

    发明人： Lvping Fu ,  Huazhi Gu ,  Ao Huang ,  Meijie Zhang

    IPC分类号： C04B35/44 ,  C04B35/626 ,  C04B35/64

    摘要： A titanium-containing calcium hexaaluminate material and preparation method thereof is disclosed. The technical solution is: using 60˜80 wt % alumina micro powder, 5˜20 wt % calcium-containing micro powder, 10˜20 wt % titania micro powder and 1˜10 wt % manganese oxide micro powder as raw materials, blending the raw materials evenly in a planetary ball mill to obtain a blend, machine pressing the blend at 100˜200 MPa to obtain a green body, drying the green body at 110˜200° C. for 12˜36 h, and incubating the dried green body at 1500˜1800° C. for 1˜8 h to obtain the titanium-containing calcium hexaaluminate material. The present disclosure has low cost and simple process, and the prepared titanium-containing calcium hexaaluminate material has the characteristics of good chemical stability, high thermal shock resistance and strong melt resistance to titanium-aluminum alloy.

    DOUBLE-SHELL PHASE CHANGE HEAT STORAGE BALLS AND PREPARATION METHOD THEREOF
    8.
    发明申请
    DOUBLE-SHELL PHASE CHANGE HEAT STORAGE BALLS AND PREPARATION METHOD THEREOF 有权

    公开(公告)号：US20210278142A1

    公开(公告)日：2021-09-09

    申请号：US17330427

    申请日：2021-05-26

    申请人： Wuhan University of Science and Technology

    发明人： Huazhi Gu ,  Qiulin Xia ,  Meijie Zhang ,  Ao Huang ,  Lvping Fu ,  Fengming Zhou ,  Haifeng Li

    IPC分类号： F28D20/02 ,  C09K5/06 ,  C04B35/117 ,  C04B35/636 ,  C04B35/626 ,  C04B35/64

    摘要： A double-shell phase change heat storage balls and preparation method thereof is disclosed. The technical scheme is as follows. Paraffin is placed in oven, and organic ignition loss is added to obtain paraffin melt containing the ignition loss; metal balls is immersed in the paraffin melt containing the ignition loss, and cooled naturally to obtain the metal balls coated by ignition loss and paraffin; alumina refractory slurry is placed in a pan granulator, and the metal balls coated by ignition loss and paraffin is added, pelletized, and dried to obtain alumina composite phase change heat storage ball bodies; mullite refractory slurry is placed in a pan granulator, alumina composite phase change heat storage ball bodies is added, pelletized, dried, and placed in a muffle furnace. The temperature is raised to 1200-1600° C. by three systems and maintained. After naturally cooling, the double-shell phase change heat storage balls are prepared.

    Lightweight micro-closed-pore corundum composite refractory, method for preparing the same
    9.
    发明授权
    Lightweight micro-closed-pore corundum composite refractory, method for preparing the same 有权

    公开(公告)号：US10519065B2

    公开(公告)日：2019-12-31

    申请号：US15773087

    申请日：2015-12-16

    申请人： Wuhan University of Science and Technology

    发明人： Huazhi Gu ,  Ao Huang ,  Lvping Fu ,  Meijie Zhang ,  Nan Li

    IPC分类号： C04B35/111 ,  C04B35/101 ,  C04B38/06 ,  C04B38/00 ,  C04B111/00

    摘要： A lightweight micro-closed-pore corundum composite refractory and a method preparing the same, wherein raw materials of the refractory comprise 95-99 parts by weight of α-Al2O3 micro-powder and 1-5 parts by weight of dolomite clinker; and additives of the refractory comprise 2-15 parts by weight of nano alumina sol, 5-15 parts by weight of a carbohydrate polymer, and 30-50 parts by weight of an organic alcohol. and the lightweight micro-closed-pore corundum composite refractory is prepared by: mixing and wet grinding the raw materials and the additives to obtain a slurry; placing the slurry in a mold, keeping the mold at 15-25° C. for 6-12 hours and then keeping the mold at 60-90° C. for 6-12 hours, then demolding; drying a demolded green body at 110-200° C. for 24-36 hours, and keeping the green body at 1800-2000° C. for 2-5 hours. A method preparing a lightweight micro-closed-pore corundum composite refractory is also provided. The lightweight micro-closed-pore corundum composite refractory of the present invention has characteristics of low bulk density, small average pore size, high closed porosity, low thermal conductivity, strong thermal shock resistance, abrasion resistance and slag resistance.