公开(公告)号：US20170067179A1

公开(公告)日：2017-03-09

申请号：US14844596

申请日：2015-09-03

Applicant: King Fahd University of Petroleum and Minerals

Inventor： Anwar UL-HAMID ,  Hatim Dafalla Mohamed Dafalla

IPC: C25D15/00 ,  C25D5/50 ,  C25D5/18

CPC classification number: C25D15/00 ,  B32B15/16 ,  B32B2264/102 ,  B32B2264/105 ,  C25D3/12 ,  C25D5/18 ,  C25D5/50

Abstract: An Al2O3-coated co-deposit including an Ni-based alloy substrate, an exterior layer present on a surface of the substrate, wherein the exterior layer comprises NiCrAlY or NiCoCrAlY particles with a diameter of 0.5-50 μm, Ni nanoparticles with a diameter of 0.1-10 nm in the form of a matrix, and Al2O3 particles that are present on the exterior surface of the exterior layer. A method for manufacturing the Al2O3-coated co-deposit whereby a substrate is immersed into a solution comprising at least one dissolved nickel salt, NiCrAlY or NiCoCrAlY particles, and Al particles in an electrochemical cell, DC current is pulsed into the electrochemical cell to electrodeposit Al, Ni, and NiCrAlY or NiCoCrAlY particles onto the substrate to form a deposited layer, and the substrate comprising the deposited layer is calcined to oxidize the Al particles and form the Al2O3-coated co-deposit.

Abstract translation: 包含Ni基合金基板，存在于基板表面上的外层的Al 2 O 3涂层共沉积物，其中外层包括直径为0.5-50μm的NiCrAlY或NiCoCrAlY颗粒，直径为 基体形式为0.1-10nm，存在于外层外表面的Al2O3颗粒。 一种制造Al 2 O 3涂层共沉积物的方法，其中将基底浸入包含至少一种溶解的镍盐，NiCrAlY或NiCoCrAlY颗粒的溶液中，以及电化学电池中的Al颗粒，将DC电流脉冲进入电化学电池以电沉积 Al，Ni和NiCrAlY或NiCoCrAlY颗粒在基底上形成沉积层，并且将包含沉积层的基材煅烧以氧化Al颗粒并形成Al 2 O 3涂覆的共沉积物。

公开(公告)号：US20210032105A1

公开(公告)日：2021-02-04

申请号：US16530369

申请日：2019-08-02

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Abbas Saeed HAKEEM ,  Anwar UL-HAMID ,  Oki MURAZA ,  Muhammad Ali EHSAN

IPC: C01B21/082

Abstract: A method of making a β-SiAlON is described in involves mixing nanoparticles of AlN, Al2O3, and SiO2 with particles of Si3N4 and spark plasma sintering the mixture. The sintering may be at a temperature of 1450-1600° C. or about 1500° C. The particles of Si3N4 may be nanoparticles comprising amorphous Si3N4, or 25-55 μm diameter microparticles comprising β-Si3N4.

公开(公告)号：US20170335483A1

公开(公告)日：2017-11-23

申请号：US15670524

申请日：2017-08-07

Applicant: King Fahd University of Petroleum and Minerals

Inventor： Anwar UL-HAMID ,  Hatim Dafalla Mohamed DAFALLA

IPC: C25D15/00 ,  C25D3/12 ,  B32B15/16 ,  C25D5/50 ,  C25D5/18

CPC classification number: C25D15/00 ,  B32B15/16 ,  B32B2264/102 ,  B32B2264/105 ,  C25D3/12 ,  C25D5/18 ,  C25D5/50

Abstract: An Al2O3-coated co-deposit including an Ni-based alloy substrate, an exterior layer present on a surface of the substrate, wherein the exterior layer comprises NiCrAlY or NiCoCrAlY particles with a diameter of 0.5-50 μm, Ni nanoparticles with a diameter of 0.1-10 nm in the form of a matrix, and Al2O3 particles that are present on the exterior surface of the exterior layer. A method for manufacturing the Al2O3-coated co-deposit whereby a substrate is immersed into a solution comprising at least one dissolved nickel salt, NiCrAlY or NiCoCrAlY particles, and Al particles in an electrochemical cell, DC current is pulsed into the electrochemical cell to electrodeposit Al, Ni, and NiCrAlY or NiCoCrAlY particles onto the substrate to form a deposited layer, and the substrate comprising the deposited layer is calcined to oxidize the Al particles and form the Al2O3-coated co-deposit.