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铝尖晶石
相关语句
  alumina spinel
    Development and application of alumina spinel castable for LF refining ladle
    LF精炼钢包用铝尖晶石浇注料的研制与应用
短句来源
    6) Corrosion mechanism of alumina spinel self-flow castables was analyzed according to the phase diagram,the main reason of slag penetration is the increases of Fe2O3 in slag or low melting point phase CF.
    6)对于转炉末期渣,随着水泥含量增加,浇注料的抗渗透性增强,抗熔蚀性变差; 7)应用相图分析了铝尖晶石浇注料的侵蚀机理,认为渣中Fe_2O_3或低熔点相CF的增加是渣渗透的主要原因。
短句来源
    The effect of alumina enriched magnesia alumina spinel on slag resistance and Ca treated steel resistance of magnesia refractories was investigated.
    研究了富铝尖晶石对镁质耐火材料抗钢渣与抗钙处理钢侵蚀性的影响。
短句来源
    The investigation has shown:1)With the increasing of alumina enriched magnesia alumina spinel in the matrix,the resistance to basic slag penetration tends to increase,while the resistances to basic slag corrosion and Ca treated steel tend to decrease;
    结果表明 :随着富铝尖晶石加入量的增加 ,镁质耐火材料的抗钙处理钢和钢渣熔蚀性逐渐减弱 ,而抗钢渣渗透性逐渐增强 ;
短句来源
  aluminum spinel
    The data show that this catalyst has high activity and strength,good heatresisting and abrasion performance,and long life. During operation,the performances of the catalyst are steady with little change in physical and chemical properties,and difficult form the non active nickel aluminum spinel.
    数据表明CN - 2 0型催化剂活性好、强度高、耐热、耐磨损 ,在运转中催化剂性能稳定 ,物化性能变化不大 ,且不易生成无活性的镍铝尖晶石 ,催化剂使用寿命长。
短句来源
  alumina spinel
    Development and application of alumina spinel castable for LF refining ladle
    LF精炼钢包用铝尖晶石浇注料的研制与应用
短句来源
    6) Corrosion mechanism of alumina spinel self-flow castables was analyzed according to the phase diagram,the main reason of slag penetration is the increases of Fe2O3 in slag or low melting point phase CF.
    6)对于转炉末期渣,随着水泥含量增加,浇注料的抗渗透性增强,抗熔蚀性变差; 7)应用相图分析了铝尖晶石浇注料的侵蚀机理,认为渣中Fe_2O_3或低熔点相CF的增加是渣渗透的主要原因。
短句来源
    The effect of alumina enriched magnesia alumina spinel on slag resistance and Ca treated steel resistance of magnesia refractories was investigated.
    研究了富铝尖晶石对镁质耐火材料抗钢渣与抗钙处理钢侵蚀性的影响。
短句来源
    The investigation has shown:1)With the increasing of alumina enriched magnesia alumina spinel in the matrix,the resistance to basic slag penetration tends to increase,while the resistances to basic slag corrosion and Ca treated steel tend to decrease;
    结果表明 :随着富铝尖晶石加入量的增加 ,镁质耐火材料的抗钙处理钢和钢渣熔蚀性逐渐减弱 ,而抗钢渣渗透性逐渐增强 ;
短句来源
  “铝尖晶石”译为未确定词的双语例句
    Development of magnesia-hercynite brick for burning zone of cement rotary kiln
    水泥窑烧成带用镁铁铝尖晶石砖的研制
短句来源
    Effect of TiO_(2) addition on sintering of alumina-rich MgAl_(2)O_(4 )
    TiO_2加入量对富铝尖晶石烧结性能的影响
短句来源
    Formations of ferrous oxide and hercynite
    氧化亚铁与铁铝尖晶石的形成
短句来源
    as far as the ABR with high iron content is concerned, in addition to the reactions dissertated above, the corrosion reactions occurred in the material include that Fe2O3 is reduced into FeO and Fe3O4, that FeO reacts with Al2O3 to form FeAl2O4 and Fe3O4 is reduced into metallic iron subsequently.
    而对于高铁含量红柱石制品而言,发生的侵蚀反应除了SiO_2被还原成SiO之外,还包括Fe_2O_3被还原成FeO和Fe_3O_4,进而FeO与Al_2O_3反应形成铁铝尖晶石(FeAl_2O_4),Fe_3O_4继续被还原成金属铁。
短句来源
    The zeta potentials of high purity tabular alumina(Al 2O 3),alumina rich spinel(MgO·1.35Al 2O 3) and their mixture Al 2O 3-MgO·1.35Al 2O 3 at different pH values were measured.
    测试了高纯板状刚玉粉 (Al2 O3)、富铝尖晶石粉 (MgO·1 .35Al2 O3)及其复合粉料 (Al2 O3-MgO·1 .35Al2 O3)在水溶液中不同 pH值下的ζ电位 ,三者的等电点分别为 7.4、~ 3和 5 .3。
短句来源
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  alumina spinel
A set of physicochemical analytical methods was applied to study fusion and crystallization of magnesia-alumina spinel, aluminum titanate, mullite, and their binary and ternary formulations.
      
Chromian spinels from the Staré Ransko gabbro-peridotite, Czech Republic, display a distinct development trend: from primary Cr-rich spinels towards ferro-ferri (Ti-enriched magnetite) and magnesio-alumina (spinel sensu stricto) spinels.
      
Effects of Al3+ ions being partially substituted by Fe3+ ions in the magnesium-alumina spinel structure on the activity of SO2 oxidative adsorption and the reductive decomposition of sulfate have been studied.
      
To develop a novel additive that has excellent olefin reduction capability for FCC gasoline without loss in octane number, different additives based on magnesia-alumina spinel were prepared by sol-gel method.
      
High temperature creep behaviour of nearly stoichiometric alumina spinel
      
更多          
  aluminum spinel
Specific Features of the Synthesis of Porous Materials Based on a Magnesium-Aluminum Spinel
      
The optimum conditions are determined for treatment of two-phase materials with the aim of preparing ceramics based on the magnesium-aluminum spinel with an accessible porosity of higher than 50%.
      
Assuming the Ni-NiO system, the formation of nickel aluminum spinel could be used to increase the equilibrium hydrogen yield, thus, enabling the hydrogen production via looping redox process.
      
After bombardment for 2 h, the material was found to contain nickel aluminum spinel with a heavily distorted structure.
      
The three supports are silicon nitride (Si3N4), magnesium aluminum spinel (MgAl2O4), and graphitized carbon (C).
      
更多          
  alumina spinel
A set of physicochemical analytical methods was applied to study fusion and crystallization of magnesia-alumina spinel, aluminum titanate, mullite, and their binary and ternary formulations.
      
Chromian spinels from the Staré Ransko gabbro-peridotite, Czech Republic, display a distinct development trend: from primary Cr-rich spinels towards ferro-ferri (Ti-enriched magnetite) and magnesio-alumina (spinel sensu stricto) spinels.
      
Effects of Al3+ ions being partially substituted by Fe3+ ions in the magnesium-alumina spinel structure on the activity of SO2 oxidative adsorption and the reductive decomposition of sulfate have been studied.
      
To develop a novel additive that has excellent olefin reduction capability for FCC gasoline without loss in octane number, different additives based on magnesia-alumina spinel were prepared by sol-gel method.
      
High temperature creep behaviour of nearly stoichiometric alumina spinel
      
更多          


Pressureless sintered silicon nitride with magnesium aluminum spinel and rare earthoxide as densification aids were investigated.An almost pure α-phase silicon nitride finepowder (specific surface area=5~7m~2/g) was used as the starting material.By the liquidsintering process, silicon nitride articles with about 1% apparent porosity could be fabri-cated.The strength achieved at room temperature was 7000~7500kg/cm~2(part of them exceed-ed 8000kg/cm~2)and hardness HRA exceeded 90.Their performances at room temperature...

Pressureless sintered silicon nitride with magnesium aluminum spinel and rare earthoxide as densification aids were investigated.An almost pure α-phase silicon nitride finepowder (specific surface area=5~7m~2/g) was used as the starting material.By the liquidsintering process, silicon nitride articles with about 1% apparent porosity could be fabri-cated.The strength achieved at room temperature was 7000~7500kg/cm~2(part of them exceed-ed 8000kg/cm~2)and hardness HRA exceeded 90.Their performances at room temperature com-pare favorably with hot-pressed silicon nitride doped with 5wt% MgO.

本文报导了以镁铝尖晶石和稀土氧化物为致密化添加剂的烧结Si_3N_4研究。用接近纯α相的Si_3N_4细粉(比表面5~7m~2/g)为原始粉料,通过液相烧结,能制得显气孔率在1%左右的致密的试样。室温强度达7000~7500kg/cm~2,部分强度超过8000kg/cm~2,硬度HRA在90以上。试样的室温性能可与添加5wt%MgO的热压氮化硅材料相比。

C.W. Brindley et al. (1959) considered the principal crystalline phase in the exothermic reaction of clay mineral kaolinite at about 980℃ as Al-Si spinel(2Al_2O_3·3SiO_2 or 3Al_2O_3·2SiO_2) and pointed out that the Al-Si spinel is similar to that of γ-Al_2O_3, and it is possible to mistake it for r-Al_2O_3 in case of inaccurate measurement. F.C. Loughnan et al.(1981) found that the kaolinite flint clay may transform into mullite and christobalite during the self-burning of coal in New South Wales, Australia,...

C.W. Brindley et al. (1959) considered the principal crystalline phase in the exothermic reaction of clay mineral kaolinite at about 980℃ as Al-Si spinel(2Al_2O_3·3SiO_2 or 3Al_2O_3·2SiO_2) and pointed out that the Al-Si spinel is similar to that of γ-Al_2O_3, and it is possible to mistake it for r-Al_2O_3 in case of inaccurate measurement. F.C. Loughnan et al.(1981) found that the kaolinite flint clay may transform into mullite and christobalite during the self-burning of coal in New South Wales, Australia, while in the low temperature zone metakaolinite occurs. They also considered that the above fact was discovered by themselves. But, the formation of the Al-Si spinel was not ascertained. Ma Jinping, Ba Qinglian, Jing Kigui and the author(1982 ) observed, near a highway in Hequ County, Shanxi Province, that carbonaceous clay has been whitened by scorching during the self-burning of coal within carboniferous coal series. Later, by the study of the author, it is identified that the temperature of the carbonaceous kaolinite has reached to 1000℃, almost to that needed to form Al-Si spinel near the exothermic peak of kaolinite. It is very concordant as compared with the data obtained by G. W.Brindley, and that of the exothermic peak of kaolinite. The appearance of the samples resembles with the kaolinite clay heated up to 1000℃.Theyare white, soft with micropores, slightly rough and staining fingers easily. They are also dark in luster and not viscous. The data from X-ray of a powder photo(Jeney photo, 10 hours)are as follows, 1.9673(?)(strong), 1.3919(?)(verystrong), 1.140(?)(weak)in width. All of the curves of different thermal analysis and those of dehydration are straight lines. The result of chemical analysis is similar to that of the dehydraed kaolinite. The content of impurities is 4.69%, A/S=0.902. Grainular texture and micropores are shown under the scanning electronic microscope. The result of infrared spectrum analysis is the same with that of the reaction of Suzhou's kaolinite heated up to 1000~1100℃(Chen Jingyan 1963), and 1300~960cm~(-1) wide peak shows the curve of the elastic vibration of (Si—O)—Si; 804cm~(-1) shows the vibration of Si—O—Al, and 469cm~(-1) shows the vibration of Si—O.The burned clay is always associated with a small amount of mullite. This resembles the reaction of kaolinite heated up to 1000℃ but is different from halloysite heated up to 1000℃(no mullite). Sometimes a small amount of halloysite (7(?)) is formed by rain action.

粘土矿物高岭石在980℃左右放热反应的主要结晶相被G.W.Brindley(1959)确定为硅铝尖晶石(2Al_2O_3·3SiO_2)。并指出硅铝尖晶石和γ-Al_2O_3的X射线数据很相似,若不作仔细测量易把它误认为是γ-Al_2O_3。F.C.Loughnan等(1981)研究Australia New South Wales高岭石硬质粘土因煤层自燃而受热,转变为莫来石与方石英,其低温带则产生变高岭石,并说这是有文献记载的第一次。但他们却没有肯定硅铝尖晶石的生成。笔者于1982年与马晋屏、巴庆廉、井喜贵等同志在山西省河曲县公路边的上石炭统煤系地层中,发现因煤自燃而使炭质粘土有灼烧变白的现象。后来经笔者研究,肯定为炭质高岭石粘土因受煤自燃已煅烧至1000℃左右,即相当于高岭石放热峰附近所产生硅铝尖晶石的阶段。并与Brindley等的资料及有关高岭石放热峰的数据进行了对比,完全相符。 样品外观与用人工法,使高岭石粘土加热至1000℃左右时的物料一样,白色、松软有微孔隙、无滑感稍粗糙、易染手、光泽暗淡、无粘性。其X射线粉末照相(Jeney相机,10h)数据为:1...

粘土矿物高岭石在980℃左右放热反应的主要结晶相被G.W.Brindley(1959)确定为硅铝尖晶石(2Al_2O_3·3SiO_2)。并指出硅铝尖晶石和γ-Al_2O_3的X射线数据很相似,若不作仔细测量易把它误认为是γ-Al_2O_3。F.C.Loughnan等(1981)研究Australia New South Wales高岭石硬质粘土因煤层自燃而受热,转变为莫来石与方石英,其低温带则产生变高岭石,并说这是有文献记载的第一次。但他们却没有肯定硅铝尖晶石的生成。笔者于1982年与马晋屏、巴庆廉、井喜贵等同志在山西省河曲县公路边的上石炭统煤系地层中,发现因煤自燃而使炭质粘土有灼烧变白的现象。后来经笔者研究,肯定为炭质高岭石粘土因受煤自燃已煅烧至1000℃左右,即相当于高岭石放热峰附近所产生硅铝尖晶石的阶段。并与Brindley等的资料及有关高岭石放热峰的数据进行了对比,完全相符。 样品外观与用人工法,使高岭石粘土加热至1000℃左右时的物料一样,白色、松软有微孔隙、无滑感稍粗糙、易染手、光泽暗淡、无粘性。其X射线粉末照相(Jeney相机,10h)数据为:1.9573(?)宽(强);1.3919(?)宽(很强),1.140(?)宽(弱)。差热分析曲线与脱水曲线均呈直线状。化学分析结果与较纯的高岭石熟料很相似,杂质总含量4.69%,A/S=0.902。扫描电镜下多呈粒状结构及微细孔隙。红外吸?

In the paper,the technical conditions are studied to produce dense magnesium aluminate clinkers in the way of sfep firing.The reswlt shows that sintered magnesium aluminate clinkers with more tha 3.3 g/cm~3 bulk density and less than 7% apparent porosity can be obtained by controlling technical parameters.

作者对用二步煅烧法准备致密镁铝尖晶石熟料的工艺条件进行了研究。结果表明,控制合理的工艺参数,可制得体积密度大于3.3克/cm~3,显气孔率小于5%的镁铝尖晶石熟料。

 
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