Evaluation of crushing strength of spray-dried MgAl2O4 granule beds

Ulla Kanerva, Tomi Suhonen, Juha Lagerbom, E. Levänen

    Research output: Contribution to journalArticleScientificpeer-review

    4 Citations (Scopus)

    Abstract

    The crushing strengths of four different experimental magnesium aluminate spinel (MgAl2O4) granule beds were monitored with the axial die pressing test after heat treatments. Precursor, magnesium hydroxide (Mg(OH)2) and magnesium oxide (MgO) as Mg precursor and aluminium oxide hydroxide Al(O)OH and a-Al2O3 as Al precursor, were used for experimental granules, which were manufactured via a dispersion manufacturing and spray-drying process. After spray-drying, granules were heat treated in air at 1000, 1100, 1200, 1300 and 1400°C. In order to understand the potential effect of precursor, phase structure, morphology, particle size distribution and density of granules on crushing strength behaviour, scanning X-ray diffraction (XRD) was used together with electron microscopy (SEM) and laser diffraction (LDPA) for characterisation. All precursor mixtures formed spherical granules during the spray-drying process and pure spinel phase structure during heat treatment. The crushing strength test results indicated that the Al precursor clearly affected the crushing strength behaviour of experimental granule beds. The highest strength was observed for granule beds with Al(O)OH) as Al and Mg(OH)2 as Mg precursor.
    Original languageEnglish
    Pages (from-to)8494-8500
    JournalCeramics International
    Volume41
    Issue number7
    DOIs
    Publication statusPublished - 2015
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Spray drying
    Compressive strength
    Phase structure
    Magnesium
    Magnesium Hydroxide
    Heat treatment
    Magnesium Oxide
    Magnesia
    Particle size analysis
    Electron microscopy
    Diffraction
    Scanning
    Aluminum
    X ray diffraction
    Scanning electron microscopy
    Oxides
    spinell
    Lasers
    Air

    Keywords

    • axial pressing
    • granule
    • MgAl2O4 spinel
    • the crushing strength
    • ProperPart
    • ProperTune

    Cite this

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    title = "Evaluation of crushing strength of spray-dried MgAl2O4 granule beds",
    abstract = "The crushing strengths of four different experimental magnesium aluminate spinel (MgAl2O4) granule beds were monitored with the axial die pressing test after heat treatments. Precursor, magnesium hydroxide (Mg(OH)2) and magnesium oxide (MgO) as Mg precursor and aluminium oxide hydroxide Al(O)OH and a-Al2O3 as Al precursor, were used for experimental granules, which were manufactured via a dispersion manufacturing and spray-drying process. After spray-drying, granules were heat treated in air at 1000, 1100, 1200, 1300 and 1400°C. In order to understand the potential effect of precursor, phase structure, morphology, particle size distribution and density of granules on crushing strength behaviour, scanning X-ray diffraction (XRD) was used together with electron microscopy (SEM) and laser diffraction (LDPA) for characterisation. All precursor mixtures formed spherical granules during the spray-drying process and pure spinel phase structure during heat treatment. The crushing strength test results indicated that the Al precursor clearly affected the crushing strength behaviour of experimental granule beds. The highest strength was observed for granule beds with Al(O)OH) as Al and Mg(OH)2 as Mg precursor.",
    keywords = "axial pressing, granule, MgAl2O4 spinel, the crushing strength, ProperPart, ProperTune",
    author = "Ulla Kanerva and Tomi Suhonen and Juha Lagerbom and E. Lev{\"a}nen",
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    year = "2015",
    doi = "10.1016/j.ceramint.2015.03.056",
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    volume = "41",
    pages = "8494--8500",
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    Evaluation of crushing strength of spray-dried MgAl2O4 granule beds. / Kanerva, Ulla; Suhonen, Tomi; Lagerbom, Juha; Levänen, E.

    In: Ceramics International, Vol. 41, No. 7, 2015, p. 8494-8500.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Evaluation of crushing strength of spray-dried MgAl2O4 granule beds

    AU - Kanerva, Ulla

    AU - Suhonen, Tomi

    AU - Lagerbom, Juha

    AU - Levänen, E.

    N1 - Project code: 75071

    PY - 2015

    Y1 - 2015

    N2 - The crushing strengths of four different experimental magnesium aluminate spinel (MgAl2O4) granule beds were monitored with the axial die pressing test after heat treatments. Precursor, magnesium hydroxide (Mg(OH)2) and magnesium oxide (MgO) as Mg precursor and aluminium oxide hydroxide Al(O)OH and a-Al2O3 as Al precursor, were used for experimental granules, which were manufactured via a dispersion manufacturing and spray-drying process. After spray-drying, granules were heat treated in air at 1000, 1100, 1200, 1300 and 1400°C. In order to understand the potential effect of precursor, phase structure, morphology, particle size distribution and density of granules on crushing strength behaviour, scanning X-ray diffraction (XRD) was used together with electron microscopy (SEM) and laser diffraction (LDPA) for characterisation. All precursor mixtures formed spherical granules during the spray-drying process and pure spinel phase structure during heat treatment. The crushing strength test results indicated that the Al precursor clearly affected the crushing strength behaviour of experimental granule beds. The highest strength was observed for granule beds with Al(O)OH) as Al and Mg(OH)2 as Mg precursor.

    AB - The crushing strengths of four different experimental magnesium aluminate spinel (MgAl2O4) granule beds were monitored with the axial die pressing test after heat treatments. Precursor, magnesium hydroxide (Mg(OH)2) and magnesium oxide (MgO) as Mg precursor and aluminium oxide hydroxide Al(O)OH and a-Al2O3 as Al precursor, were used for experimental granules, which were manufactured via a dispersion manufacturing and spray-drying process. After spray-drying, granules were heat treated in air at 1000, 1100, 1200, 1300 and 1400°C. In order to understand the potential effect of precursor, phase structure, morphology, particle size distribution and density of granules on crushing strength behaviour, scanning X-ray diffraction (XRD) was used together with electron microscopy (SEM) and laser diffraction (LDPA) for characterisation. All precursor mixtures formed spherical granules during the spray-drying process and pure spinel phase structure during heat treatment. The crushing strength test results indicated that the Al precursor clearly affected the crushing strength behaviour of experimental granule beds. The highest strength was observed for granule beds with Al(O)OH) as Al and Mg(OH)2 as Mg precursor.

    KW - axial pressing

    KW - granule

    KW - MgAl2O4 spinel

    KW - the crushing strength

    KW - ProperPart

    KW - ProperTune

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