Patents by Inventor Xiaojia Li

Xiaojia Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220205922
    Abstract: An apparatus and a method for preparing glow discharge sputtering samples for materials microscopic characterization are provided. The apparatus includes a glow discharge sputtering unit, a glow discharge power supply, a gas circuit automatic control unit, a spectrometer, and a computer. The structure of the glow discharge sputtering unit is optimized to be more suitable for sample preparation by simulation. By adding a magnetic field to the glow discharge plasma, uniform sample sputtering is realized within a large size range of the sample surface. The spectrometer monitors multi-element signal in a depth direction of the sample sputtering, so that precise preparation of different layer microstructures is realized. In conjunction with the acquisition of the sample position marks and the precise spatial coordinates (x, y, z) information, the correspondence between the surface space coordinates and the microstructure of the sample is conveniently realized.
    Type: Application
    Filed: May 7, 2021
    Publication date: June 30, 2022
    Applicant: NCS Testing Technology CO.,LTD
    Inventors: Xing YU, Haizhou WANG, Xuejing SHEN, Xiaojia Li, Yifei ZHU, Weihao WAN, Yuhua LU, Hui WANG, Qun REN, Yongqing WANG, Zhenzhen WAN
  • Patent number: 11040397
    Abstract: A sleeve mold for a method of high-throughput hot isostatic pressing micro-synthesis for combinatorial materials includes a honeycomb-array-sleeve and an upper cover, wherein a plurality of single cells are tightly arranged inside the honeycomb-array-sleeve, an exhaust tube is arranged on the upper cover, after the single cells are filled with powder materials, the upper cover is sealed welding on the honeycomb-array-sleeve, and the honeycomb-array-sleeve and the upper cover are both integrally produced by additive manufacturing. According to the method and the sleeve mold, the powder metallurgy hot isostatic pressing process is utilized to prepare small-size bulk combinatorial materials with multiple discrete components rapidly at one time.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: June 22, 2021
    Assignee: CENTRAL IRON AND STEEL RESEARCH INSTITUTE
    Inventors: Haizhou Wang, Yunhai Jia, Lei Zhao, Xuebin Chen, Hui Wang, Man Hu, Guang Feng, Dongling Li, Peng Wang, Xiaojia Li
  • Patent number: 10804073
    Abstract: An apparatus and method for a large-scale high-throughput quantitative characterization and three-dimensional reconstruction of a material structure. The apparatus having a glow discharge sputtering unit, a sample transfer device, a scanning electron microscope unit and a GPU computer workstation. The glow discharge sputtering unit can achieve large size (cm order), nearly flat and fast sample preparation, and controllable achieve layer-by-layer ablation preparation along the depth direction of the sample surface; rapid scanning electron microscopy (SEM) can achieve large-scale and high-throughput acquisition of sample characteristic maps. The sample transfer device is responsible for transferring the sample between the glow discharge sputtering source and the scanning electron microscope in an accurately positioning manner.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: October 13, 2020
    Assignee: THE NCS TESTING TECHNOLOGY CO., LTD.
    Inventors: Haizhou Wang, Xing Yu, Xuejing Shen, Yunhai Jia, Xiaojia Li, Yuhua Lu, Weihao Wan, Jianqiu Luo, Dongling Li, Lei Zhao
  • Publication number: 20200294760
    Abstract: An apparatus and method for a large-scale high-throughput quantitative characterization and three-dimensional reconstruction of a material structure. The apparatus having a glow discharge sputtering unit, a sample transfer device, a scanning electron microscope unit and a GPU computer workstation. The glow discharge sputtering unit can achieve large size (cm order), nearly flat and fast sample preparation, and controllable achieve layer-by-layer ablation preparation along the depth direction of the sample surface; rapid scanning electron microscopy (SEM) can achieve large-scale and high-throughput acquisition of sample characteristic maps. The sample transfer device is responsible for transferring the sample between the glow discharge sputtering source and the scanning electron microscope in an accurately positioning manner.
    Type: Application
    Filed: October 30, 2019
    Publication date: September 17, 2020
    Inventors: Haizhou WANG, Xing YU, Xuejing SHEN, Yunhai JIA, Xiaojia LI, Yuhua LU, Weihao WAN, Jianqiu LUO, Dongling LI, Lei ZHAO
  • Publication number: 20200215613
    Abstract: The invention relates to a method of high-throughput hot isostatic pressing micro-synthesis for the combinatorial materials and a sleeve mould thereof. The sleeve mould (2) comprises a honeycomb-array-sleeve (3) and an upper cover (4), wherein a plurality of single cells (6) are tightly arranged inside the honeycomb-array-sleeve (3), an exhaust tube (5) is arranged on the upper cover (4), after the single cells (6) are filled with powder materials, the upper cover (4) is sealed welding on the honeycomb-array-sleeve (3), and the honeycomb-array-sleeve (3) and the upper cover (4) are both integrally produced by additive manufacturing. According to the method and the sleeve mould, the powder metallurgy hot isostatic pressing process is utilized to prepare small-size bulk combinatorial materials with multiple discrete components rapidly at one time. This method has the characteristics of high sintering speed, high compaction density, good thermal diffusivity, short production cycle and low material consumption.
    Type: Application
    Filed: January 7, 2020
    Publication date: July 9, 2020
    Inventors: Haizhou WANG, Yunhai JIA, Lei ZHAO, Xuebin CHEN, Hui WANG, Man HU, Guang FENG, Dongling LI, Peng WANG, Xiaojia LI
  • Patent number: 10562098
    Abstract: The present invention belongs to the technical field of high throughput preparation and hot working of materials, and in particular to a high throughput micro-synthesis method of multi-component materials based on the temperature gradient field controlled by microwave energy. This invention, characterized by flexible material selection, quick temperature rising and high-efficient heating, uses microwave heating both to achieve quick preparation of small block combinatorial materials under the same temperature field in one time and to realize micro-synthesis under the different temperature gradient fields in one time including high-throughput sintering-melting and heat treatment of materials. This invention successfully overcomes drawbacks of current material preparation, such as unitary combination of components, low-efficient external heating, unique control temperature, huge material consumption and high cost during material preparation and heat treatment.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: February 18, 2020
    Assignee: Central Iron and Steel Research Institute
    Inventors: Haizhou Wang, Yunhai Jia, Lei Zhao, Xuebin Chen, Dongling Li, Peng Wang, Guang Feng, Xiaojia Li
  • Publication number: 20190111481
    Abstract: The present invention belongs to the technical field of high throughput preparation and hot working of materials, and in particular to a high throughput micro-synthesis method of multi-component materials based on the temperature gradient field controlled by microwave energy. This invention, characterized by flexible material selection, quick temperature rising and high-efficient heating, uses microwave heating both to achieve quick preparation of small block combinatorial materials under the same temperature field in one time and to realize micro-synthesis under the different temperature gradient fields in one time including high-throughput sintering-melting and heat treatment of materials. This invention successfully overcomes drawbacks of current material preparation, such as unitary combination of components, low-efficient external heating, unique control temperature, huge material consumption and high cost during material preparation and heat treatment.
    Type: Application
    Filed: March 6, 2018
    Publication date: April 18, 2019
    Inventors: Haizhou Wang, Yunhai Jia, Lei Zhao, Xuebin Chen, Dongling Li, Peng Wang, Guang Feng, Xiaojia Li