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  • 1
    Electronic Resource
    Electronic Resource
    Manufacturing Process of Activated Magnesia from Bittern and Dolomite (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 1882-1885 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.1882.pdf
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  • 2
    Electronic Resource
    Electronic Resource
    Manufacturing Processes of Solid Oxide Fuel Cell Components (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 498-501 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The all processes for manufacturing materials parts of solid oxide fuel cell (SOFC) arediscussed in the paper. The films are made in one step by the ways of APS, VPS, EVD, which areusually used to produce the electrolyte and interconnect. The films are thin and good gas-resistance,but with relatively high cost. All parts of SOFC are made by the following ways, such as sol-gel, tapecasting, tape calendaring and screen printing, which are suitable for manufacturing samples inindustry with the cheapest process by co-sintered together ways
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.498.pdf
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  • 3
    Electronic Resource
    Electronic Resource
    Manufacture Process of Light Calcium Carbonate from Limestone (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 1843-1845 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: This process and parameters of fabricating light calcium carbonate from limestone werediscussed in the paper. Raw limestone in experiment comes from Luquan city, Hebei province. Theresults of chemistry and XRD analysis indicate that ingredient of this limestone is mainly calciumcarbonate, dolomite, silicon dioxide, which takes 83.81%, 11.03% and 1.67% separately, and a few ofother impurities. The process includes calcinations, assimilation, carbonation, drying and others. It wasascertainable that the time of calcinations exceeded 5 hours at 850~ 950[removed info] and loss of calcinations was42%. The time of assimilation was around 25 minutes at 70~90[removed info]The time of carbonation was about 30minutes at 50~90[removed info], and the airflow was about 160L/min and PH of latex after carbonation was 7.2~7.4.The light calcium carbonate product was obtained in experiment, whose fine sphere size was about 10nanometer, with the agglomeration particle size 2~3μm. The degree of white improved from 42 to 76. Asa result, the comprehensive properties of the produce were improved consumedly
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.1843.pdf
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  • 4
    Electronic Resource
    Electronic Resource
    Study of Carbonizing Processes for Sintered Dolomite (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 2552-2555 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: It is the easy and widely used way to make light calcium carbonate and magnesium carbonatefrom dolomite by carbonizing process. During this process, the dolomite is calcined at differenttemperature, from 700°C to 950°C to get the mixture including either calcium carbonate and magnesia orcalcia and magnesia. Then the mixture is blended with water in different temperature from roomtemperature to 80°C. As a result, it is supposed to get calcium hydroxide and magnesium hydroxide, butXRD analysis reveals that it is not accord with the theory. Magnesium hydroxide can not be obtainedduring this reaction. After the carbonization process, the calcium carbonate and a kind of mixture which iscomposed with different crystal phase of Mg5(CO3)4(OH)2[H2O]4 have been produced, instead ofmagnesium carbonate. The magnesia is gotten when the mixture is calcined at 450~750°C
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/54/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.2552.pdf
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  • 5
    Electronic Resource
    Electronic Resource
    Grain Characteristics of Nanocrystalline ZrO〈sub〉2〈/sub〉 Powders (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 2558-2561 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The grain characteristics of four kinds of ZrO2 nanocrystalline powders were manifested anddiscussed in this paper. The grain size of sample 1 tested by XRD, TEM and BET is consistent. Theagglomeration coefficient of Sample 1 is higher, about 62.5, and the span of grain distribution is 14.58.The grain sizes of Sample 2 and 3 tested by XRD, TEM and BET are different. These differences identifythe crystalline domain including 2~3 unite, which make the departure spheres in TEM. There are moresoft agglomerates in Sample 2 with the agglomeration coefficient of 25.71 and the span of graindistribution being 18.94 than that in Sample 3 with the agglomeration coefficient of 6.89 and the span ofgrain distribution being 8.91. The grain sizes of Sample 4 tested by XRD, TEM and BET are obviouslydifferent. That identifies the large hard agglomerates
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/54/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.2558.pdf
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  • 6
    Electronic Resource
    Electronic Resource
    On the Sealing Materials for SOFC (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 452-454 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Processing of sealing materials is a key technology in planar SOFC. In this paper, compositionsof sealing materials were determined and then mixed and milled for 7~8 h. Glass materials were obtainedby melt at 1300 ~ 1600°C and quenched in cold water. The powder materials were made by milling andscreening. Properties of thermal expansion of sealing materials were on the same level to both electrolyteand interconnect. Experiments using 7 kinds of materials were carried respectively at 900°C and 1300°C.The most suitable sealing temperatures related to sealing materials were then determined. Thermal cycleexperiments were carried and hermetical properties were tested by red-absorption. Microstructure wereobserved with SEM and it revealed that the prepared sealing materials joins well with YSZ but not sogood with metal
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.452.pdf
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  • 7
    Electronic Resource
    Electronic Resource
    Preparation of Pottery from Shale (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 2062-2064 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The main chemistry ingredients of the shale in Baoding, China, are SiO2 and Al2O3, and themineral components are quartz, feldspar and mica. The shale was sintered to produce pottery at 1000 ~1300°C and its deposit density and expansion ratio were measured. The compressive strength, apparentdensity, water absorption, etc, of some sintered samples with expansion ratio more than 1.5 weremeasured according to GB/T17431.2-1998. When sintered at 1150°C for 15 min, the expansion ratio ofthe shale is 1.96. When sintered at 1200°C for 10 min, the expansion ratio is 2.00. The performances ofthe prepared pottery accord with GB/T17431.2-1998: the compressive strength is 3.8MPa with theexpansion ratio 1.96, the compressive strength is 4.2MPa with the expansion ratio 2.00. The waterabsorption is 4.9~5.8%, according with GB/T17431.2-1998
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.2062.pdf
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  • 8
    Electronic Resource
    Electronic Resource
    Properties of YSZ Electrolyte Sintered at 1250°C (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 368-372 (Feb. 2008), p. 241-243 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: With the YSZ nano-powders as raw materials, the thin electrolyte film was prepared by tapecalendaring, then fired by a three-step sintering method. The YSZ film sintered at 1250°C is dense with agrain size of 0.4~3μm.The electrical conductivity, up to 0.2s/cm at 1000°C, and active energy, 0.99~1ev,are nearly the same for the samples sintered at 1250°C for 10, 15 and 20 h
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.241.pdf
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  • 9
    Electronic Resource
    Electronic Resource
    Manufacture of Electrolyte Component of SOFC (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 368-372 (Feb. 2008), p. 287-289 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The manufacture of the electrolyte film is crucial for the fabrication of solid oxide fuel cells(SOFCs). This paper reviews the main methods for fabricating the electrolyte film, which are generallyclassified as chemical methods, physical methods and ceramic molding methods. The characteristics ofeach method and its application are discussed
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.287.pdf
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  • 10
    Electronic Resource
    Electronic Resource
    High Temperature Properties of Geopolymeric Ceramic (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 368-372 (Feb. 2008), p. 1529-1531 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: With fly ash, metakaolin, slag and alkaline activator as raw materials, the geopolymericceramic was synthesized and the properties, such as the weight loss, compressive strength and thestructures, at high temperatures of 400~1200°C were measured. The weight loss is in the range of 8~13%from 400°C to 800°C. Comparing with the strength at room temperature, the compressive strength ofsamples is mostly increased at 400°C and all of them increased at 800°C. 9.65~28.32% strength declinesat 1200°C. The variation of the compressive strength with temperature is explained based on the analysesof the phases constitutes and the thermal properties of samples
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.1529.pdf
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