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中国耐火材料(英文版)
中国耐火材料(英文版)

刘解华

季刊

1004-4493

chnr@nhcl.com.cn

0379-64205961

471039

河南洛阳市西苑路43号

中国耐火材料(英文版)/Journal China's Refractories
查看更多>>本刊1992年经国家科委批准创办,由洛阳耐火材料研究院主办,是目前中国耐火材料行业唯一的一本英文杂志,现为季刊。创刊以来己出11卷(包括今年),受到海内外学者、企业家、商人的欢迎。目前与国外二十家杂志建立了交换关系,例如,美国的"陶瓷协会会刊与英国的"耐火材料与陶瓷",德国的"陶瓷论坛",比利时的"硅酸盐",法国的"陶瓷工业",日本的"耐火物"等。并且与几家著名的二次文献检索刊物也建立了密切联系。 目前国内外订户及赠阅数、交换数达1000多本/年,国外订户主要分布在美国、英国、印度、日本、德国、法国、南非、阿根廷以及东南亚和阿拉伯等十几个国家。 本杂志主要反映当前中国耐火材料发展现状。论文内容涉及到原料、工艺、生产及应用方面的新进展,以及设备更新。除研究报告和论文、综述与展望外,还报道了国家公布的一些统计数据,市场信息反迸出口情况等。同时我刊还可刊登广告和厂矿简介。 当时创办该刊的目的主要是让世界了解中国耐火材料,试图在中国耐火材料与世界耐火材料同行之间架起一座信息桥梁。尤其中国已加入世界贸易组织(WTO),我们需要更多地参与国际市场竞争,那么通过《中国耐火材料》的介绍,无疑是一条重要的渠道。 目前为止,由于《中国耐火材料》的介绍或通过《中国耐火材料》的报道,取得与国外商人联系并最终出口耐火材料产品或原料的企业十几家。 众所周知,中国耐火材料通过20多年改革开放,无论在原材料的质量上还是在制成品的质量上都有了长足的进展,有的已接近或超过国外先进水平。由于过去政策封闭,耐火材料行业因与外界联系较少,出口渠道少,出口最也就少。随着我国改革开放政策的深入,与国际同行交流日趋增加,中国耐火材料原料及产品出口也逐年增加,但与中国耐火材料产量相比,远远不够.尤其在国内市场竞争日趋激烈的条件下,寻求出口不乏是重要出路之一。因此需要更多媒体的介入,以便广交国际朋友,扩大出口渠道。
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    Challenges and Opportunities of China's Refractory Industry

    LI YongquanRUN Zizhen
    1-8页
    查看更多>>摘要:This paper reviews the current development status and achievements of China's refractory industry,summarizing the significant progress made by China's refractory industry over the past 40 years in energy conservation,environmental protection,green and low-carbon development,and intelligent manufacturing.It analyzes the challenges and difficulties faced by China's refractory industry currently,focusing on how the current adjustment cycle in China's steel industry provides new opportunities for China's refractory sector.China's refractory industry must adhere to the path of innovation-driven,intelligent manufacturing,green and low-carbon.We should seek and seize new opportunities for transformation and upgrading,continuously optimize the industrial structure,enhance product and service quality,and carefully balance the domestic and international markets.This approach aims to form a new capacity management mechanism that includes market competition and constraints from both energy consumption and carbon emission,with government supervision and industry self-discipline.

    Effect of Silicon Addition on Microwave Synthesis of Al4SiC4

    WANG LiLIU ShijieWEI HaoyuMA Juanjuan...
    9-13页
    查看更多>>摘要:Al4SiC4 was prepared using Al powder,silicon carbide powder,and graphite as raw materials,and silicon as the additive by microwave sintering.Effects of silicon additions(0,5%,10%and 15%,by mass)on the phase composition,microstructure,apparent porosity and bulk density of the Al4SiC4 sample prepared with different aluminum additions(20%,25%,by mass)were researched.Then the developed Al4SiC4 samples were applied to MgO-C bricks to investigate the effect on the oxidation resistance and mechanical properties of the MgO-C bricks.The results show that Al4SiC4 can be synthesized at lower temperatures using the microwave sintering method.The sample with 20%aluminum addition has a lower Al4SiC4 content than the one with 25%aluminum.When the silicon addition is 10%and the aluminum addition is 25%,the sample appears needle-like system,the porosity is only 28.69%,and the sample is dense.The developed Al4SiC4 was added into MgO-C bricks as the antioxidant,which greatly increased the oxidation resistance and the mechanical properties of the MgO-C bricks.

    Influence of Matrix Composition on Properties of Lightweight Magnesia-silica Castables

    MENG QingxinGAO LeiLIU YaboGUO Qiwei...
    14-18页
    查看更多>>摘要:To maintain the volume stability of lightweight magnesia-silica castables during heating,lightweight spherical forsterite aggregates(8-5,5-3,3-1 and 1-0 mm),pre-synthesized forsterite fine powder(≤0.074 and ≤0.044 mm),natural silica powder(≤0.074 mm),middle grade magnesia fine powder(≤0.074 and ≤0.044 mm)and silica fume were used as the raw materials to prepare lightweight magnesia-silica castables,and the magnesia fine powder and natural silica powder were gradually replaced by pre-synthesized forsterite fine powder(10%,20%,30%and 40%,by mass).The properties of the castables were tested and the microstructure was analyzed.The influence of the pre-synthesized forsterite fine powder addition on their properties was researched.The results show that:with the increase of the pre-synthesized forsterite fine powder addition in the matrix,the workability of the castables is almost the same.After being heated at 1 450 ℃ for 3 h,the bulk density of the castables increases,the apparent porosity decreases,the permanent linear change changes from expansion to shrinkage,the cold strengths increase firstly and then decrease,and the thermal conductivity at different temperatures increases.Generally,the optimal pre-synthesized forsterite fine powder addition is 20%.

    Pore Control and Mechanical Properties of Alumina Ceramics Using Direct Ink Writing

    ZHU KaiZHAO XiangYANG LianghuaYANG Daoyuan...
    19-28页
    查看更多>>摘要:Ceramics with proper pore sizes and geometry are critical to many applications,so that lots of efforts have been made to achieve the goal.Direct ink writing(DIW),an additive manufacturing technique,is cost-effective and accessible.It is interesting to study the ability to control the pore size and geometry by the DIW technique.In this study,alumina ceramics were prepared with special focus on the pore configuration and the performance of printed samples was tested.The porous structures with different pore sizes(minimum pore size of 200 μm)and different shapes(honeycomb,lattice and triangle)were printed.The printed structures shrunk uniformly and maintained the original geometry after firing,they did not show any visible defects or deformations,and the microstructure was uniform and dense.It was found the honeycomb structures exhibited superior mechanical strength at the same porosity compared to lattice and triangle structures,which reached 55 MPa with a porosity of 70%.The high strength with the high porosity was attributed to the highly controlled microstructure,i.e.,uniform pore sizes,pore shapes and interconnectivity.

    Properties of New Zirconia-based Composites for Glass Kilns

    LIANG XinxingYE HangGAO YuyingZHAN Lei...
    29-33页
    查看更多>>摘要:To provide a material with excellent comprehensive properties for the glass kiln melting pools,zirconia powder and alumina powder were fully mixed according to the ratio of m(ZrO2)∶m(Al2O3)=4∶1 and fused in an arc furnace.The obtained fused zirconia-corundum eutectic material was processed into different particle sizes,batched according to a certain particle size distribution and mixed evenly.After pressure molding and firing at 1 750 ℃,new zirconia-based composites were prepared.The phase composition and microstructure of the composites were analyzed.The molten glass corrosion resistance of the composites was compared with that of zirconia corundum bricks 33# and 41#.The results show that the new zirconia-based composites have a dense structure,high chemical purity without low melting point components,and good thermal shock resistance.Compared with zirconia corundum bricks 33# and 41#,after being corroded by high temperature molten glass,the new composites have no corrosion cavities,needle-like pores,defects or liquid phase infiltration,and no reaction with molten glass,showing good corrosion resistance to molten glass.

    Characteristics of Typical Calcium Aluminate Cement and Influence on Hydration Heat of Castables

    WANG HanyuLI HaixuZHAN HuashengLIU Xiaoguang...
    34-37页
    查看更多>>摘要:Two kinds of pure calcium aluminate cement(CAC)prepared by the sintering method and the electric melting method,respectively were analyzed in terms of the particle size,XRD patterns and hydration characteristics;and their effects on the hydration heat and construction performance of the cement-based castables were discussed.It is found that(1)the electric fused CAC contains 50.67%CA and 44.89%CA2,while the sintered CAC contains 74.57%CA and 22.97%CA2;in addition,compared to the sintered CAC,the electric fused CAC contains more C3A,C12A7,and a small amount of amorphous phase;(2)the electric fused CAC(d50 of 7.93 μm)has much smaller particle size than the sintered CAC(d50 of 12.51 μm);(3)in the early stage of hydration,the exothermic peak of the electric fused CAC appears earlier and the heat flow rate is higher than that of the sintered CAC;the dormant period of the sintered CAC is relatively short and the main exothermic peak appears earlier than that of the electric fused CAC;(4)for cement-based castables,there is no obvious exothermic peak in the early hydration stage,but the temperature of the castables slightly increases;among them,the initial hydration temperature of the electric fused CAC-based castable is higher;and the main exothermic peak of the sintered CAC-based castable appears later than that of the electric fused CAC-based castable;(5)the exothermic heating on-site occurrs earlier,which is related to the higher environmental temperature(about 30 ℃);the on-site electric fused CAC-based castable begins to show more cracks during the exothermic peak stage.

    Wettability of Silica Sol Modified Multi-layer Graphene

    LI YangzheYU BaisongZHU YeningTU Junbo...
    38-42页
    查看更多>>摘要:To expand the application of multi-layer graphene in water-based systems,modified multi-layer graphene was prepared by vacuum impregnation with silica sol and carbon-embedded heat treatment at 300,500 or 700 ℃ for 3 h.The phase composition,microstructure and wettability of the modified multi-layer graphene heat treated at different temperatures were studied.The results show that the water wettability of the modified multi-layer graphene is improved after vacuum impregnation with silica sol and carbon-embedded heat treatment;the optimum heat treatment temperature is 300 ℃,and the modified multi-layer graphene has the water wetting angle of 64.7°.

    Abstracts Selected from Naihuo Cailiao(Refractories)——A Bimonthly in Chinese Volume 57,Number 6,2023

    42-48页

    9th International Symposium on Refractories held in China Successfully

    49-50页

    Interview with Chris PARR and Frederic JOUFFRET for 10th Anniversary of Imerys Technology Center in Tianjin

    51-52页