ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • MATERIALS, NONMETALLIC  (4)
  • SPACECRAFT DESIGN, TESTING AND PERFORMANCE  (4)
  • Grossulariaceae  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Characterization of blackcurrant stem lignin
    Amsterdam : Elsevier
    Phytochemistry 37 (1994), S. 1703-1706 
    Details
    ISSN: 0031-9422
    Keywords: Grossulariaceae ; Ribes nigrum ; hardwood ; lignin ; pulp. ; stem
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0031-9422(00)89596-5
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Characterization of blackcurrant stem lignin
    Amsterdam : Elsevier
    Phytochemistry 37 (1994), S. 1703-1706 
    Details
    ISSN: 0031-9422
    Keywords: Grossulariaceae ; Ribes nigrum ; hardwood ; lignin ; pulp. ; stem
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/S0031-9422(00)89596-5
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    facet.materialart.
    Unknown
    Emittance of RSI Coatings Determined from Radiation Measurements in Arc Jet Tests (1973)
    In:  CASI
    Details
    Publication Date: 2014-09-09
    Description: Simultaneous measurements were made on three surface insulation coatings for total surface radiation and radiation at discrete wavelengths between 0.88 and 4.5 microns. The mullite coating radiated all the applied heat at convective heat rates of 204 and 295 kw/sq m. Radiation from the ceramic mullite fiber coating was 170 kw/sq m at a heat rate of 454 kw/sq m. Effective total emissivity and spectral emissivity values were evaluated; all three coatings were significantly non-grey. Effective total emissivity values were 0.79 for mullite, 0.50 for ceramic mullite fiber, and 0.78 for silica composite.
    Keywords: MATERIALS, NONMETALLIC
    Type: Symp. on Reusable Surface Insulation for Space Shuttle, Vol. 3; p 1291-1311
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 4
    facet.materialart.
    Unknown
    Cyclic arc plasma tests of RSI materials using a preheater (1973)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The results of a test program are reported in which a preheater was used with an arc plasma stream to study the thermal response of samples of candidate reusable surface insulation materials for the space shuttle. The preheater simulated the shuttle temperature history during the first and last portions of the test cycle, which could not be simulated by the air arc plasma flow. Pre- and post-test data taken for each of the materials included magnified views, optical properties, and chemical analyses. The test results indicate that the mullite base samples experience higher surface temperatures than the other materials at heating rates greater than 225 kw/sq m. The ceramic fibrous mullite and silica coatings show noncatalytic wall behavior. Internal temperature response data for the materials are compared and correlated with analytical predictions.
    Keywords: MATERIALS, NONMETALLIC
    Type: Symp. on Reusable Surface Insulation for Space Shuttle, Vol. 2; p 559-589
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 5
    facet.materialart.
    Unknown
    Catalytic surface effects on contaminated space shuttle tile in a dissociated nitrogen stream (1985)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Visual inspection revealed contamination on the surface of tiles removed from the lower section of the space shuttle orbiter after the second flight of Columbia (STS-2). Possible sources of this contamination and the effect on surface catalycity are presented.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: NASA-TM-86770 , REPT-85328 , NAS 1.15:86770
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 6
    facet.materialart.
    Unknown
    Silica Reusable Surface Insulation Improvement Research (1973)
    In:  CASI
    Details
    Publication Date: 2014-09-09
    Description: Fiber characterization, fabrication processes, physical properties, and thermal responses are investigated to improve silica reusable surface insulation tiles. Criteria for fiber selection on the basis of chemical composition, shrinkage, and devitrification have been defined and a simple process for fabricating silica surface insulation materials has been developed that produces only 5% shrinkage and no devitrification of tiles at 1533 K in ten hours. Anisotropic tile with improved weak direction strength has been fabricated using conventional molding techniques.
    Keywords: MATERIALS, NONMETALLIC
    Type: Symp. on Reusable Surface Insulation for Space Shuttle, Vol. 1; p 155-196
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 7
    facet.materialart.
    Unknown
    Chemical and morphological changes of reusable surface insulation coatings as a function of convectively heated cyclic testing (1973)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The effects of convective heating upon reusable surface insulation coatings were studied utilizing scanning electron microscopy, X-ray fluorescence, and X-ray diffraction. Samples of coated silica, mullite, and ceramic mullite fiber were cycled in an arc plasma stream up to 15 times for 15 minutes per cycle at surface temperatures simulating those on the space shuttle vehicle. The surfaces of ceramic mullite fiber and mullite coatings were roughened substantially by the convectively heated environment while the silica was significantly smoothed after testing. Scanning electron microscopy also showed surface cracking of varying degrees in all of the coatings. The surface chemistry of the coatings as examined by X-ray fluorescence revealed that significant changes in composition were occurring during cycling, particularly within the mullite coating.
    Keywords: MATERIALS, NONMETALLIC
    Type: Symp. on Reusable Surface Insulation for Space Shuttle, Vol. 2; p 851-894
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 8
    facet.materialart.
    Unknown
    Performance of an ablator for Space Shuttle inorbit repair in an arc-plasma airstream (1983)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: An ablator patch material performed well in an arc plasma environment simulating nominal Earth entry conditions for the Space Shuttle. Ablation tests using vacuum molded cones provided data to optimize the formulation of a two part polymer system for application under space conditions. The blunt cones were made using a Teflon mold and a state of the art caulking gun. Char stability of formulations with various amounts of catalyst and diluent were investigated. The char was found to be unstable in formulations with low amounts of catalyst and high amounts of diluent. The best polymer system determined by these tests was evaluated using a half tile patch in a multiple High Temperature Reusable surface Insulation tile model. It was demonstrated that this ablator could be applied in a space environment using a state of the art caulking gun, would maintain the outer mold line of the thermal protection system during entry, and would keep the bond line temperature at the aluminum tile interface below the design limit.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: NASA-TP-2150 , A-9112 , NAS 1.60:2150
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 9
    facet.materialart.
    Unknown
    Effect of radiant and convective heating on the optical and thermochemical properties of reusable surface insulation (1976)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: A correlation between the morphology, chemistry, and optical properties of space shuttle candidate reusable surface insulation coatings were made to determine the proper test environment for flight evaluation studies. The optical properties (solar absorption coefficient and total hemispherical emittance) for each coating were obtained as a function of exposure to radiant and convectively heated environments since these parameters define the surface temperature of the material during flight. Results are presented which show these optical properties differ in the two environments and can be related to the coating's surface and bulk chemistry.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: AIAA PAPER 76-444 , Thermophysics Conference; Jul 14, 1976 - Jul 16, 1976; San Diego, CA
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 10
    facet.materialart.
    Unknown
    Catalytic surface effects experiment on the Space Shuttle (1981)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: A Space Shuttle experiment planned to measure the surface catalytic efficiency of the baseline high-temperature reusable surface insulation (HRSI) during earth entry is described. A spray-on overcoat, with high catalytic efficiency, will be used as a comparative basis for determining the HRSI surface catalytic efficiency through surface temperature measurement. Catalytic efficiency, as well as aerothermal response of the overcoat, was evaluated, using various models made of HRSI material in arc-plasma flow environments. Agreement is obtained between the measured and computed heating rise of the coated surfaces. Computed predictions for the flight case are presented.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: AIAA PAPER 81-1143 , Thermophysics Conference; Jun 23, 1981 - Jun 25, 1981; Palo Alto, CA
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...