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To provide a hard composite material that is excellent in abrasive wear resistance even under high temperature environment, and has resistance to damage factors such as defects due to impact or vibration for destructing rock.SOLUTION: A PDC has a diamond particle and a bonding phase, in which the bond phase contains TiC and Al4C3 and Ti, and when a peak intensity of TiC appeared at 2θ=41.6 to 41.8° is set to ITiC, a peak intensity appeared at 2θ=55.2 to 55.4°is set to IAl4C3, and a peak intensity of Ti appeared at 2θ=39.0 to 39.2°is set to ITi, a ratio of the peak intensities ITiC/IAl4C3 satisfies 15.0 to 35.0, and ITi/IAl4C3 satisfies 0.8 to 1.4.SELECTED DRAWING: Figure 1
【課題】高温環境下においても耐アブレッシブ摩耗性に優れ、さらに掘削工具として用いても、岩石を破壊するための衝撃や振動による欠損などの損傷要因に対する耐性を有する硬質複合材料を提供する【解決手段】ダイヤモンド粒子と結合相を有するＰＤＣであって、前記結合相には、ＴｉＣとＡｌ４Ｃ３とＴｉが含まれ、ＸＲＤにおける２θ＝４１．６〜４１．８°に出現するＴｉＣのピーク強度をＩＴｉＣ、同２θ＝５５．２〜５５．４°に出現するＡｌ４Ｃ３のピーク強度をＩＡｌ４Ｃ３、同２θ＝３９．０〜３９．２°に出現するＴｉのピーク強度をＩＴｉとするとき、前記ピーク強度の比、ＩＴｉＣ／ＩＡｌ４Ｃ３が１５．０〜３５．０、ＩＴｉ／ＩＡｌ４Ｃ３が０．８〜１．４を満足する【選択図】図１
To provide a hard composite material that is excellent in abrasive wear resistance even under high temperature environment, and has resistance to damage factors such as defects due to impact or vibration for destructing rock.SOLUTION: A PDC has a diamond particle and a bonding phase, in which the bond phase contains TiC and Al4C3 and Ti, and when a peak intensity of TiC appeared at 2θ=41.6 to 41.8° is set to ITiC, a peak intensity appeared at 2θ=55.2 to 55.4°is set to IAl4C3, and a peak intensity of Ti appeared at 2θ=39.0 to 39.2°is set to ITi, a ratio of the peak intensities ITiC/IAl4C3 satisfies 15.0 to 35.0, and ITi/IAl4C3 satisfies 0.8 to 1.4.SELECTED DRAWING: Figure 1
【課題】高温環境下においても耐アブレッシブ摩耗性に優れ、さらに掘削工具として用いても、岩石を破壊するための衝撃や振動による欠損などの損傷要因に対する耐性を有する硬質複合材料を提供する【解決手段】ダイヤモンド粒子と結合相を有するＰＤＣであって、前記結合相には、ＴｉＣとＡｌ４Ｃ３とＴｉが含まれ、ＸＲＤにおける２θ＝４１．６〜４１．８°に出現するＴｉＣのピーク強度をＩＴｉＣ、同２θ＝５５．２〜５５．４°に出現するＡｌ４Ｃ３のピーク強度をＩＡｌ４Ｃ３、同２θ＝３９．０〜３９．２°に出現するＴｉのピーク強度をＩＴｉとするとき、前記ピーク強度の比、ＩＴｉＣ／ＩＡｌ４Ｃ３が１５．０〜３５．０、ＩＴｉ／ＩＡｌ４Ｃ３が０．８〜１．４を満足する【選択図】図１
HARD COMPOSITE MATERIAL
硬質複合材料
YANO MASAHIRO (author)
2021-09-24
Patent
Electronic Resource
Japanese