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A platform for research: civil engineering, architecture and urbanism
MANUFACTURING METHOD OF OXIDE SINTERED PRODUCT
To provide a manufacturing method of an oxide sintered product capable of obtaining a sintered product with higher compactness, even when a sintering material is sintered by a discharge plasma sintering method.SOLUTION: A manufacturing method of an oxide sintered product includes a sintering step of charging a sintering material M into a molding tool 10 and applying discharge plasma sintering to the sintering material M while compressing the sintering material M by the molding tool 10. The molding tool 10 is formed of a silicon carbide including a dopant. At a temperature rising process in the sintering step, pressure (P1) to be applied to the sintering material M at an initial stage is set to be less than 100 MPa, and thereafter pressure (P2) applied to the sintering material M at a temperature where a cubic volume of the sintering material M turns to decrease, or higher, and at a temperature higher by 100°C or less than the temperature where a cubic volume of the sintering material M turns to decrease, or lower, is set to 100 MPa or higher.SELECTED DRAWING: Figure 1
【課題】焼結原料を放電プラズマ焼結法により焼結した場合であっても緻密性の高い焼結体を得ることのできる酸化物焼結体の製造方法を提供する。【解決手段】成形型１０に焼結原料Ｍを装入し、成形型１０により焼結原料Ｍを加圧しながら焼結原料Ｍに対して放電プラズマ焼結を施す焼結工程を含む酸化物焼結体の製造方法であって、成形型１０は、ドーパントを含む炭化ケイ素により構成され、焼結工程の昇温過程において、初期段階では焼結原料Ｍに加える圧力（Ｐ１）を１００ＭＰａ未満とし、その後、焼結原料Ｍの体積が減少に転じる温度以上且つ焼結原料Ｍの体積が減少に転じる温度＋１００℃以下の温度で焼結原料Ｍに加える圧力（Ｐ２）を１００ＭＰａ以上にする酸化物焼結体の製造方法である。【選択図】図１
MANUFACTURING METHOD OF OXIDE SINTERED PRODUCT
To provide a manufacturing method of an oxide sintered product capable of obtaining a sintered product with higher compactness, even when a sintering material is sintered by a discharge plasma sintering method.SOLUTION: A manufacturing method of an oxide sintered product includes a sintering step of charging a sintering material M into a molding tool 10 and applying discharge plasma sintering to the sintering material M while compressing the sintering material M by the molding tool 10. The molding tool 10 is formed of a silicon carbide including a dopant. At a temperature rising process in the sintering step, pressure (P1) to be applied to the sintering material M at an initial stage is set to be less than 100 MPa, and thereafter pressure (P2) applied to the sintering material M at a temperature where a cubic volume of the sintering material M turns to decrease, or higher, and at a temperature higher by 100°C or less than the temperature where a cubic volume of the sintering material M turns to decrease, or lower, is set to 100 MPa or higher.SELECTED DRAWING: Figure 1
【課題】焼結原料を放電プラズマ焼結法により焼結した場合であっても緻密性の高い焼結体を得ることのできる酸化物焼結体の製造方法を提供する。【解決手段】成形型１０に焼結原料Ｍを装入し、成形型１０により焼結原料Ｍを加圧しながら焼結原料Ｍに対して放電プラズマ焼結を施す焼結工程を含む酸化物焼結体の製造方法であって、成形型１０は、ドーパントを含む炭化ケイ素により構成され、焼結工程の昇温過程において、初期段階では焼結原料Ｍに加える圧力（Ｐ１）を１００ＭＰａ未満とし、その後、焼結原料Ｍの体積が減少に転じる温度以上且つ焼結原料Ｍの体積が減少に転じる温度＋１００℃以下の温度で焼結原料Ｍに加える圧力（Ｐ２）を１００ＭＰａ以上にする酸化物焼結体の製造方法である。【選択図】図１
MANUFACTURING METHOD OF OXIDE SINTERED PRODUCT
酸化物焼結体の製造方法
NAKAMURA NOBUO (author)
2022-03-10
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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