公开(公告)号：US20180274091A1

公开(公告)日：2018-09-27

申请号：US15926504

申请日：2018-03-20

申请人： Kennametal Inc.

发明人： Chen Chen ,  Zhenyu LIU ,  Peter Rudolf LEICHT ,  Rodrigo Alejandro COOPER

IPC分类号： C23C16/40 ,  C23C16/52 ,  C23C16/02

CPC分类号： C23C16/403 ,  C23C16/0272 ,  C23C16/52

摘要： CVD Alumina coating has been one of the most important materials for wear resistant application for many years. Recently, texture control in α-Al2O3 has attracted increasing attention due to the possibility to further improve the anisotropic properties such as thermal conductivity and mechanical properties. The influence of process parameters on textures is complex. In the present application, the influence of nucleation surface condition and H2S on the texture in CVD α-Al2O3 coatings has been investigated. It has been shown that without the addition of H2S, the crystal orientation in the Al2O3 coatings is primarily dominated by the nucleation surface condition, whereas the effect of reactant composition on texture is minimal. On the other hand, in the presence of H2S during growth, reactant composition also plays an important role in affecting the crystal orientation. This effect is likely due to the strong interaction between the Al2O3 surface and the H2S.

公开(公告)号：US20170356091A1

公开(公告)日：2017-12-14

申请号：US15631799

申请日：2017-06-23

申请人： KENNAMETAL INC.

发明人： Zhenyu LIU ,  Peter Rudolf LEICHT ,  Yixiong LIU

IPC分类号： C23C28/04 ,  C23C16/36 ,  C23C16/40 ,  C23C16/56 ,  C23C16/34 ,  C23C28/00

摘要： Cutting tools are described having coatings which can demonstrate desirable wear resistance and increased cutting lifetimes. A coated cutting tool described herein has a substrate and a coating with a plurality of alternating layers of a first layer of Al2O3 and a second layer of at least one of MeAl2O3 and MeAl2O3/MeO2 composite, wherein Me is Zr, Hf, Ti or a combination thereof. The coating has a superlattice-like structure.

公开(公告)号：US20170226634A1

公开(公告)日：2017-08-10

申请号：US15495570

申请日：2017-04-24

申请人： KENNAMETAL INC.

发明人： Zhenyu LIU ,  Yixiong LIU

IPC分类号： C23C16/34 ,  C23C16/40

CPC分类号： C23C16/34 ,  C23C16/403 ,  C23C28/042 ,  C23C28/42

摘要： In one aspect, articles are described herein comprising refractory coatings employing an inter-anchored multilayer architecture. Articles having refractory coatings described herein, in some embodiments, are suitable for high wear and/or abrasion applications such as metal cutting operations. A coated article described herein comprises a substrate and a coating deposited by CVD adhered to the substrate, the coating including a refractory layer comprising a plurality of sublayer groups, a sublayer group comprising a Group IVB metal nitride sublayer and an adjacent layer alumina sublayer, the Group IVB metal nitride sublayer comprising a plurality of nodules interfacing with the alumina sublayer.

公开(公告)号：US20160215387A1

公开(公告)日：2016-07-28

申请号：US14602745

申请日：2015-01-22

申请人： Kennametal Inc.

发明人： Zhenyu LIU ,  Qingjun Zheng ,  Peter Rudolf Leicht ,  Yixiong Liu

IPC分类号： C23C16/06 ,  C04B35/58 ,  C23C16/44

CPC分类号： C04B35/58014 ,  C23C16/34

摘要： In one aspect, articles employing CVD coatings deposited at low temperatures are described herein. Briefly, a coated article described herein comprises a substrate and a refractory coating adhered to the substrate, the refractory coating including a layer of TiN deposited by thermal CVD, the layer of TiN having an average crystallite size of 0.05 μm to 0.5 μm and residual tensile stress of 100 MPa to 700 MPa.

摘要翻译： 在一个方面，本文描述了使用在低温下沉积的CVD涂层的制品。 简而言之，本文描述的涂覆制品包括基底和粘附到基底的耐火涂层，耐火涂层包括通过热CVD沉积的TiN层，所述TiN层具有0.05μm至0.5μm的平均微晶尺寸和残余拉伸强度 应力为100MPa至700MPa。

公开(公告)号：US20170096372A1

公开(公告)日：2017-04-06

申请号：US14872802

申请日：2015-10-01

申请人： Kennametal Inc.

发明人： Zhenyu LIU ,  Peter Rudolf Leicht ,  Yixiong Liu

IPC分类号： C04B35/117 ,  B23B27/14 ,  C04B37/00

CPC分类号： C04B35/117 ,  B23B27/148 ,  B23B2222/16 ,  B23B2222/28 ,  B23B2226/125 ,  B23B2228/04 ,  C04B35/62222 ,  C04B37/006 ,  C04B2235/3817 ,  C04B2235/3856 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/781 ,  C04B2235/785 ,  C04B2237/121 ,  C04B2237/122 ,  C23C16/30 ,  C23C28/04 ,  C23C28/042

摘要： In one aspect, articles are described herein comprising refractory coatings employing alumina-based hybrid nanocomposite architectures. A coated article described herein comprises a substrate and a coating deposited by CVD adhered to the substrate, the coating including a composite refractory layer having a matrix phase comprising alumina and at least one particulate phase within the matrix phase, the particulate phase comprising nanoscale to submicron particles formed of at least one of an oxycarbide and oxycarbonitride of one or more metals selected from the group consisting of aluminum and Group IVB metals.

公开(公告)号：US20160160347A1

公开(公告)日：2016-06-09

申请号：US14563562

申请日：2014-12-08

申请人： Kennametal Inc.

发明人： Zhenyu LIU ,  Peter Rudolf Leicht ,  Rodrigo Alejandro Cooper ,  Yixiong Liu

IPC分类号： C23C16/44 ,  C23C16/40

CPC分类号： C23C16/44 ,  C23C16/32 ,  C23C16/34 ,  C23C16/36 ,  C23C16/403 ,  C23C28/042

摘要： In one aspect, articles are described comprising refractory coatings employing nanocomposite architectures. Articles having such refractory coatings, in some embodiments, are suitable for high wear and/or abrasion applications such as metal cutting operations. A coated article described herein comprises a substrate and a coating deposited by CVD adhered to the substrate, the coating including a refractory layer having a matrix phase comprising alumina and a nanoparticle phase contained within the matrix phase, the nanoparticles phase comprising crystalline nanoparticles formed of at least one of a carbide, nitride or carbonitride of a Group IVB metal.

摘要翻译： 在一个方面，描述了使用纳米复合结构的包含耐火涂层的制品。 在一些实施例中，具有这种耐火涂层的制品适用于诸如金属切割操作的高磨损和/或磨蚀应用。 本文所述的涂覆制品包括基底和通过CVD沉积的涂层附着到基底上的涂层，所述涂层包括具有包含氧化铝的基质相和包含在基质相内的纳米粒子相的耐火层，所述纳米颗粒相包含由at 至少一种第IVB族金属的碳化物，氮化物或碳氮化物。

公开(公告)号：US20160160346A1

公开(公告)日：2016-06-09

申请号：US14563692

申请日：2014-12-08

申请人： Kennametal Inc.

发明人： Zhenyu LIU ,  Yixiong Liu

IPC分类号： C23C16/34 ,  C23C16/40

CPC分类号： C23C16/34 ,  C23C16/403 ,  C23C28/042 ,  C23C28/42

摘要： In one aspect, articles are described herein comprising refractory coatings employing an inter-anchored multilayer architecture. Articles having refractory coatings described herein, in some embodiments, are suitable for high wear and/or abrasion applications such as metal cutting operations. A coated article described herein comprises a substrate and a coating deposited by CVD adhered to the substrate, the coating including a refractory layer comprising a plurality of sublayer groups, a sublayer group comprising a Group IVB metal nitride sublayer and an adjacent layer alumina sublayer, the Group IVB metal nitride sublayer comprising a plurality of nodules interfacing with the alumina sublayer.

摘要翻译： 在一个方面，本文描述的制品包括采用相互锚定的多层结构的耐火涂层。 在一些实施例中，本文所述的具有耐火涂层的制品适用于高磨损和/或磨损应用，例如金属切削操作。 本文所述的涂覆制品包括基底和通过CVD沉积的涂层附着到基底上的涂层，所述涂层包括包含多个子层组的耐火层，包含第IVB族金属氮化物层和相邻层氧化铝子层的子层， ⅣB族金属氮化物层，包括与氧化铝层相接的多个结核。

公开(公告)号：US20220235487A1

公开(公告)日：2022-07-28

申请号：US17611748

申请日：2020-05-15

申请人： Kennametal Inc.

发明人： Zhenyu LIU

IPC分类号： C30B28/14 ,  C30B29/20 ,  C30B29/36 ,  C30B29/38

摘要： In one aspect, methods of making coated articles are described herein. A method, in some embodiments, comprises providing a substrate, and depositing a coating by chemical vapor deposition (CVD) and/or physical vapor deposition (PVD) over a surface of the substrate, the coating comprising at least one polycrystalline layer, wherein one or more CVD and/or PVD conditions are selected to induce one or more properties of the polycrystalline layer. The presence of the one or more properties in the polycrystalline layer is quantified by two-dimensional (2D) X-ray diffraction analysis.