公开(公告)号：US20230415230A1

公开(公告)日：2023-12-28

申请号：US17847846

申请日：2022-06-23

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Mohamed Abdrabou HUSSEIN ,  Mohammed Abdul AZEEM ,  A. Madhan KUMAR ,  Noha Mohamed EMARA

IPC: B22F7/00 ,  B22F1/052 ,  B22F1/142 ,  B22F3/12

CPC classification number: B22F7/008 ,  B22F1/052 ,  B22F1/142 ,  B22F3/12 ,  B22F2301/058 ,  B22F2301/205 ,  B22F2302/45 ,  B22F2304/10

Abstract: A method to form a metal matrix composite reinforced with eggshell (ES). The method includes preparing an ES powder, blending and milling the ES powder with at least one metal powder selected from the group consisting of magnesium (Mg), zirconium (Zr) to form a powder mixture, compacting and sintering the powder mixture to form the metal matrix composite. In addition, a Mg—Zr-ES metal matrix composite with improved corrosion resistance, having an amount of magnesium from 95 to 97 wt. %, an amount of zirconium from 1 to 2 wt. %, and an amount of ES from 1 to 4 wt. %, may be used for biomedical applications.

公开(公告)号：US20240368735A1

公开(公告)日：2024-11-07

申请号：US18312268

申请日：2023-05-04

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Mohamed Abdrabou HUSSEIN ,  Mohammed Abdul AZEEM ,  Arumugam Madhan KUMAR ,  Ahmad Asaad SOROUR

IPC: C22C14/00 ,  C22C1/04 ,  C22F1/18

Abstract: An antimicrobial alloy includes titanium, niobium, and silver. Further, the antimicrobial alloy includes between 5 and 30 atomic percent niobium, up to 3 atomic percent silver, the remaining atomic percentage is titanium, and the alloy does not include zirconium. The antimicrobial alloy has a predominantly beta-titanium crystal structure and an elasticity modulus ranging from 60 to 85 GPa. A process for manufacturing the antimicrobial alloy. The antimicrobial alloy prepared by the method can be used in bioimplants.

公开(公告)号：US20240102195A1

公开(公告)日：2024-03-28

申请号：US17950173

申请日：2022-09-22

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Arumugam Madhan KUMAR ,  Mohamed Abdrabou HUSSEIN

IPC: C25D13/12 ,  A61L31/10 ,  A61L31/16 ,  C09D5/14 ,  C09D5/24 ,  C09D165/00

CPC classification number: C25D13/12 ,  A61L31/10 ,  A61L31/16 ,  C09D5/14 ,  C09D5/24 ,  C09D165/00

Abstract: A method of coating a metallic substrate includes immersing a metallic substrate in a polymer composition including a conductive 3,4-ethylene dioxythiophene (EDOT) polymer, a gelatin polyelectrolyte, an antibacterial drug, an organic solvent, and an inorganic salt solute, and further coating the polymer composition onto a surface of the metallic substrate by cyclic voltammetry to form a coating on the surface of the metallic substrate. The coating on the metallic substrate is performed such that the gelatin and the antibacterial drug are uniformly distributed throughout the coating, and the coating has a thickness between 7.0 and 15.0 micrometers. The metallic substrate is a stainless steel (SS). An implantable medical device including a metallic substrate coated by the present method.

公开(公告)号：US20160101471A1

公开(公告)日：2016-04-14

申请号：US14513368

申请日：2014-10-14

Applicant: King Fahd University of Petroleum and Minerals

Inventor： Mohamed Abdrabou HUSSEIN ,  Nasser Mohammed AL-AQEELI ,  Challapalli Suryanarayana

IPC: B22F9/04 ,  B22F3/105 ,  C22C1/04 ,  C22C27/02 ,  C22C1/00 ,  B22F9/00 ,  C22C45/10

CPC classification number: B22F9/04 ,  B22F3/105 ,  B22F9/002 ,  B22F2009/041 ,  B22F2009/043 ,  C22C1/002 ,  C22C1/045 ,  C22C1/0458 ,  C22C27/02 ,  C22C45/10 ,  C22C2200/04

Abstract: A method for preparing an alloy, including mixing elemental powders of Nb and Zr to obtain a powder mixture, and mechanical alloying to obtain an alloyed powder mixture, where the alloyed powder is more than 50% amorphous. The spark plasma sintering machine was used for the consolidation of the Nb60Zr40 sample prepared by mechanical alloying. An Nb—Zr alloy composition obtained by the method, having an average crystallite size of 18 to 26 nm, hardness of 580.

Abstract translation: 一种制备合金的方法，包括混合Nb和Zr的元素粉末以获得粉末混合物，并进行机械合金化以获得合金粉末超过50％的无定形粉末混合物。 放电等离子体烧结机用于通过机械合金化制备的Nb60Zr40样品的固结。 通过该方法获得的平均微晶尺寸为18〜26nm，硬度为580的Nb-Zr合金组合物。

公开(公告)号：US20250033116A1

公开(公告)日：2025-01-30

申请号：US18911871

申请日：2024-10-10

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Mohamed Abdrabou HUSSEIN ,  Mohammed Abdul AZEEM ,  A. Madhan KUMAR ,  Noha Mohamed EMARA

IPC: B22F7/00 ,  B22F1/052 ,  B22F1/142 ,  B22F3/12 ,  C22C1/04 ,  C22C1/05

Abstract: A method to form a metal matrix composite reinforced with eggshell (ES). The method includes preparing an ES powder, blending and milling the ES powder with at least one metal powder selected from the group consisting of magnesium (Mg), zirconium (Zr) to form a powder mixture, compacting and sintering the powder mixture to form the metal matrix composite. In addition, a Mg—Zr-ES metal matrix composite with improved corrosion resistance, having an amount of magnesium from 95 to 97 wt. %, an amount of zirconium from 1 to 2 wt. %, and an amount of ES from 1 to 4 wt. %, may be used for biomedical applications.

公开(公告)号：US20210130930A1

公开(公告)日：2021-05-06

申请号：US16672866

申请日：2019-11-04

Applicant: King Fahd University of Petroleum and Minerals

Inventor： Mohamed Abdrabou HUSSEIN ,  Murad ALI ,  Nasser AL-AQEELI

IPC: C22C1/05 ,  C22C1/04 ,  B22F9/04

Abstract: A method for producing a biodegradable magnesium metal composite that includes a polycrystalline magnesium matrix and TiB2 grains which are homogenously distributed in the polycrystalline magnesium matrix involving spark plasma sintering a milled mixture of magnesium powder and TiB2 powder. The temperature, pressure, and time of the spark plasma sintering used in the method are used to give high microharness, macrohardness, and density with low porosity by limiting the grain growth in the composite. The method yields a biodegradable magnesium metal composite having an improved microhardness, macrohardness, density, and porosity compared to other composites and methods of making composites.

公开(公告)号：US20170067136A1

公开(公告)日：2017-03-09

申请号：US14845430

申请日：2015-09-04

Applicant: King Fahd University of Petroleum and Minerals

Inventor： Mohamed Abdrabou HUSSEIN ,  Nasser Mohammed Al-Aqeeli

IPC: C22C14/00 ,  A61F2/28 ,  A61F2/02 ,  B22F3/105 ,  C22C1/04

CPC classification number: C22C14/00 ,  A61L27/00 ,  A61L27/06 ,  A61L31/022 ,  B22F3/105 ,  B22F2003/1051 ,  B22F2998/10 ,  C22C1/0458 ,  B22F2009/041

Abstract: Alloys of titanium with 20-22 at. % niobium and 12-13 at. % zirconium. The alloys are prepared by mechanical alloying of elemental powders and densification by spark plasma sintering. The alloys have a nano-scaled, equiaxed granular structure, a microhardness of at least 650 HV and a modulus of 90-140 GPa. The inventive alloy is corrosion resistant, biocompatible, and is of a higher wear resistance and durability compared to the Ti-6Al-4V alloy. The bioactive surface of the inventive nanostructured alloy promotes a higher protein adsorption that stimulates new bone formation than other titanium-based alloys. These alloys are suitable for various biomedical and dental applications.

Abstract translation: 钛合金与20-22 at。 ％铌和12-13 at。 ％锆。 合金通过元素粉末的机械合金化和通过放电等离子体烧结的致密化来制备。 合金具有纳米级的等轴晶粒结构，至少650HV的显微硬度和90-140GPa的模量。 与Ti-6Al-4V合金相比，本发明的合金具有耐腐蚀性，生物相容性，并且具有更高的耐磨性和耐久性。 本发明的纳米结构合金的生物活性表面促进了比其它钛基合金更高的蛋白质吸附，其刺激新的骨形成。 这些合金适用于各种生物医学和牙科应用。