A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HEAT RESISTANT MEMBER
To provide a heat resistant member having both excellent mechanical strength and thermal shock resistance.SOLUTION: The heat resistant member is constituted of alumina based ceramic containing an alumina crystal, glass, and a mullite crystal, with the content of Al in terms of Al2O3 being not less than 70 mass% and not more than 89 mass% and the sum of the content of Si in terms of SiO2, the content of Ca in terms of CaO, and the content of Mg in terms of MgO being not less than 11 mass% and not more than 30 mass%, relative to 100 mass% of the total constituents. The content of alumina crystal is not less than 80 mass% and the content of the mullite crystal is not less than 4 mass% according to the values obtained by Rietveld analysis.SELECTED DRAWING: None
【課題】 優れた機械的強度および耐熱衝撃性を兼ね備えた耐熱部材を提供する。【解決手段】 本開示の耐熱部材は、アルミナ結晶、ガラスおよびムライト結晶を含有し、構成される全成分１００質量％のうち、ＡｌをＡｌ２Ｏ３換算で７０質量％以上８９質量％以下含有し、ＳｉのＳｉＯ２換算での含有量と、ＣａのＣａＯ換算での含有量と、ＭｇのＭｇＯ換算での含有量との合計が１１質量％以上３０質量％以下であるアルミナ質セラミックスからなる。そして、リートベルト解析により求められた値において、前記アルミナ結晶が８０質量％以上であり、前記ムライト結晶が４質量％以上である。【選択図】 なし
HEAT RESISTANT MEMBER
To provide a heat resistant member having both excellent mechanical strength and thermal shock resistance.SOLUTION: The heat resistant member is constituted of alumina based ceramic containing an alumina crystal, glass, and a mullite crystal, with the content of Al in terms of Al2O3 being not less than 70 mass% and not more than 89 mass% and the sum of the content of Si in terms of SiO2, the content of Ca in terms of CaO, and the content of Mg in terms of MgO being not less than 11 mass% and not more than 30 mass%, relative to 100 mass% of the total constituents. The content of alumina crystal is not less than 80 mass% and the content of the mullite crystal is not less than 4 mass% according to the values obtained by Rietveld analysis.SELECTED DRAWING: None
【課題】 優れた機械的強度および耐熱衝撃性を兼ね備えた耐熱部材を提供する。【解決手段】 本開示の耐熱部材は、アルミナ結晶、ガラスおよびムライト結晶を含有し、構成される全成分１００質量％のうち、ＡｌをＡｌ２Ｏ３換算で７０質量％以上８９質量％以下含有し、ＳｉのＳｉＯ２換算での含有量と、ＣａのＣａＯ換算での含有量と、ＭｇのＭｇＯ換算での含有量との合計が１１質量％以上３０質量％以下であるアルミナ質セラミックスからなる。そして、リートベルト解析により求められた値において、前記アルミナ結晶が８０質量％以上であり、前記ムライト結晶が４質量％以上である。【選択図】 なし
HEAT RESISTANT MEMBER
耐熱部材
KIKUCHI KENTARO (author) / TOYODA SATOSHI (author) / UENO TAKAHIRO (author) / TAKENOSHITA HIDEHIRO (author)
2020-07-09
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME