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学者姓名：陈继民
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Abstract ：
In this study, highly loaded tin oxide-based (SnO2-based) porous electrodes were prepared by digital light processing (DLP) 3D printing technology. Firstly, the SnO2 light-cured slurry was prepared. The curing process and heat treatment process were analyzed and optimized. Then the best process parameters were obtained. Antimony oxide (Sb2O3) was selected as the conductive agent to improve the electrical con-ductivity of the SnO2-based electrode. Through the characterization of resistivity, SEM and XRD, the op-timum doping amount of conductive agent Sb2O3 was determined to be 6 wt. %. Three kinds of porous electrodes with different shapes were prepared by DLP 3D printing, and the printing accuracy and me-chanical properties were characterized. The results showed that the forming dimension error was about 1.7 % in the X and Y direction, 2.3 % in the Z direction. And the average compressive strength was 18.1 MPa, which effectively ensured the shape integrity and mechanical stability of the printed parts. Then the electrochemical properties of DLP 3D printed SnO2-based electrode and conventional coated electrode were tested and compared. The results showed that the 3D printed porous electrode showed lower charge transfer impedance and higher ion diffusion efficiency, and the maximum charge transfer impedance could be reduced to 1/25 of the traditional electrode; At the same time, it showed better cycle performance and rate performance, and the capacity retention of the 3D printed porous electrode could be improved by about 29.0 % compared with the traditional electrode. This work shows that high-performance high-load porous electrodes can be accurately prepared by DLP 3D printing, which provides a new strategy for the future development of high-load thick electrodes. (c) 2022 Elsevier B.V. All rights reserved.
Keyword ：
DLP 3D printing DLP 3D printing Doping Doping Porous electrodes Porous electrodes SnO2-based SnO2-based
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| GB/T 7714 | Qi, Guoan , Yao, Haihua , Zeng, Yong et al. Preparation and properties of highly loaded SnO2-based porous electrodes by DLP 3D printing [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2023 , 935 . |
| MLA | Qi, Guoan et al. "Preparation and properties of highly loaded SnO2-based porous electrodes by DLP 3D printing" . | JOURNAL OF ALLOYS AND COMPOUNDS 935 (2023) . |
| APA | Qi, Guoan , Yao, Haihua , Zeng, Yong , Chen, Jimin . Preparation and properties of highly loaded SnO2-based porous electrodes by DLP 3D printing . | JOURNAL OF ALLOYS AND COMPOUNDS , 2023 , 935 . |
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Abstract ：
本发明公开了一种基于表面主应变测量内六角螺栓预紧力的试验系统与方法，测试系统由预埋应变片内六角螺栓、缩比试验件、三轴应变花、动态应变仪和上位机组成，三轴应变花对称粘贴在距离内六角螺栓轴线nd位置，测试方法包括：S1、应用动态应变仪和上位机采集螺栓预紧力与测点三个方向的应变；S2、基于测点三向应变数据计算测点主应变ε1和ε2；S3、获取测点主应力σ1和σ2，设计四个测点主应力标准差的阈值；S4、建立表征内六角螺栓预紧力与测点平均应力关系的数据驱动模型。本发明属于数控机床高性能装配技术领域，能够准确测量不同材料和尺寸的内六角螺栓连接结构预紧力，解决了内六角螺栓预紧力在线无损测量方法缺失问题。
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| GB/T 7714 | 李迎 , 李赫 , 刘志峰 et al. 一种基于表面主应变测量内六角螺栓预紧力的试验系统与方法 : CN202310703260.4[P]. | 2023-06-14 . |
| MLA | 李迎 et al. "一种基于表面主应变测量内六角螺栓预紧力的试验系统与方法" : CN202310703260.4. | 2023-06-14 . |
| APA | 李迎 , 李赫 , 刘志峰 , 赵永胜 , 王子龙 , 陈继民 . 一种基于表面主应变测量内六角螺栓预紧力的试验系统与方法 : CN202310703260.4. | 2023-06-14 . |
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Abstract ：
本发明提出了一种基于熔融挤出制备腰椎融合器的方法及装置，以单一组分或多组分金属粉末、低熔点的单一组分或多组分高分子聚合物粉末为原材料，通过高速混合机制备均匀混合的复合金属粉末材料，可以根据不同的生产需求制备不同成分的材料，只需将打印头加热至高分子聚合物粉末的熔点以上，然后再以熔融挤出的方式进行3D打印成形，得到金属坯体经过脱脂烧结，最终获得腰椎融合器。该方法显著降低腰椎融合器的制造成本，金属坯体残余应力小，腰椎融合器的表面纹理结构有利于细胞粘附生长。
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| GB/T 7714 | 陈继民 , 赵衍冬 . 一种基于熔融挤出制备腰椎融合器的方法及装置 : CN202310235309.8[P]. | 2023-03-13 . |
| MLA | 陈继民 et al. "一种基于熔融挤出制备腰椎融合器的方法及装置" : CN202310235309.8. | 2023-03-13 . |
| APA | 陈继民 , 赵衍冬 . 一种基于熔融挤出制备腰椎融合器的方法及装置 : CN202310235309.8. | 2023-03-13 . |
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Abstract ：
本发明公开了一种基于3D打印的扫描辅助头枕，旨在解决在对人头部的细节(耳朵)进行扫描时，仅仅是坐着可能会不自觉地摇晃和随时都要注意扫描距离而导致的扫描不精确和扫描慢的问题。本发明利用Magics软件建立贴合头部结构的三维模型，这样的头枕能够实现均匀受力和稳定靠支撑，从而提高用户的舒适性，并减少晃动的次数。头枕的周边设有轨道，轨道与头枕的距离是可以调节的，以调节到扫描的最合适距离。在卡槽上装有电机，通过电机控制让扫描仪在轨道上可控的行驶。应用本发明的方案，可以更好地支撑头部，同时弥补了每移动一次扫描焦点需要调节与扫描物体距离的缺陷，提高了扫描耳朵的精度和速度，达到定制化辅助头枕的目的。
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| GB/T 7714 | 陈继民 , 冯欣 , 张旭涛 et al. 一种基于3D打印的扫描辅助头枕的制作方法 : CN202310621970.2[P]. | 2023-05-30 . |
| MLA | 陈继民 et al. "一种基于3D打印的扫描辅助头枕的制作方法" : CN202310621970.2. | 2023-05-30 . |
| APA | 陈继民 , 冯欣 , 张旭涛 , 曾勇 , 姚海华 . 一种基于3D打印的扫描辅助头枕的制作方法 : CN202310621970.2. | 2023-05-30 . |
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Abstract ：
一种三周期极小曲面结构的弹性体聚合物的制备方法，属于3D打印领域。本发明通过建模软件设计三周期极小曲面结构，利用SLS 3D打印机进行制造，并对弹性体聚合物零件进行热处理以提高综合性能。本发明能够实现轻量化的效果，同时零件受到载荷时便于发挥结构的最佳承载优势以及良好的隔热性能。
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| GB/T 7714 | 曾勇 , 李猛 , 赵衍冬 et al. 一种三周期极小曲面结构的弹性体聚合物的制备方法 : CN202310168887.4[P]. | 2023-02-27 . |
| MLA | 曾勇 et al. "一种三周期极小曲面结构的弹性体聚合物的制备方法" : CN202310168887.4. | 2023-02-27 . |
| APA | 曾勇 , 李猛 , 赵衍冬 , 杨洪瑞 , 姚海华 , 尚坤 et al. 一种三周期极小曲面结构的弹性体聚合物的制备方法 : CN202310168887.4. | 2023-02-27 . |
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Abstract ：
An implant template with great precision is significantly critical for clinical application. Currently, the application of an immediate implant remains limited by the deviations between the planned and actual achieved positions and long periods required for preparation of implant templates. Material Extrusion (MEX), as one kind of 3D printing method, is well known for its low cost and easy operation. However, the accuracy of the implant template printed by MEX has not been fully researched. To investigate the accuracy and feasibility of in vitro computer-guided surgery assisted with a MEX printed template, unidentified plaster samples missing a maxillary molar are digitalized. Mimics software (Materialise, Leuven, Belgium) is used for preoperative design. Surgical templates are fabricated by a MEX 3D printer (Lingtong III, Beijing SHINO, Beijing, China). Postoperative CBCT data are obtained after surgical template placement. The differences in positions of X, Y, Z, and dXYZ as well as angulations between the placed and the designed template are measured on labiolingual and mesiodistal planes. The deviations of the planned and the actual outcome in each dimension are observed and analyzed. Data from different samples indicate that the mean deviation of the angle measures approximately 3.640 degrees. For position deviation, the maximum deviation is found in the z-direction and the mean deviation is about 0.365 +/- 0.136 mm. The mean deviation of space Euclidean distance dXYZ is approximately 0.537 +/- 0.123 mm. Implant templates fabricated by MEX present a relatively high accuracy for tooth-supported guide implantation.
Keyword ：
accuracy analysis accuracy analysis fused deposition modeling fused deposition modeling CBCT CBCT 3D printing 3D printing implant template implant template
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| GB/T 7714 | Zhang, Chengyu , Yuan, Yanping , Chen, Jimin . Material Extrusion Based Fabrication of Surgical Implant Template and Accuracy Analysis [J]. | MATERIALS , 2022 , 15 (5) . |
| MLA | Zhang, Chengyu et al. "Material Extrusion Based Fabrication of Surgical Implant Template and Accuracy Analysis" . | MATERIALS 15 . 5 (2022) . |
| APA | Zhang, Chengyu , Yuan, Yanping , Chen, Jimin . Material Extrusion Based Fabrication of Surgical Implant Template and Accuracy Analysis . | MATERIALS , 2022 , 15 (5) . |
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Abstract ：
3D printing technology was introduced into the manufacturing of ceramic components. To obtain a new light-weight multifunctional structure with novel structure and excellent performance, and promote the deep com-bination of additive manufacturing and optimization design, ZrO2(3Y)/Al2O3 hollow lattice structure ceramics with two kinds of high precision and different porosity were prepared by vat photopolymerization in this paper, and the process optimization, microstructure evolution, and performance were studied. The hollow lattice structure with good molding accuracy and porosity of 35 %-55 % was prepared by component design, opti-mization of slurry, degreasing, and sintering process, which effectively avoided the ceramic cracking and collapse caused by resin volatilization. When the Al2O3 content was 6 wt%, dense ZrO2(3Y)/Al2O3 ceramics with grain refinement, excellent microhardness, and fracture toughness were obtained. The relationship between lattice structure and compressive strength was analyzed by simulation and compressive test. The results show that the compressive strength of the two hollow lattice structures decreases with the increase of porosity. The maximum compressive strength of 35 %-face-centered cubic (FCC) hollow lattice structure is 326 MPa, which is significantly higher than that of body-centered cubic (BCC) structure (240 MPa) with the same porosity. The hollow lattice ceramic structure with good comprehensive performance and lightweight will lay a foundation for the application of industrial heat insulation, high temperature catalysis, and purification carrier in the future.
Keyword ：
Mechanical properties Mechanical properties 3D printing 3D printing Analogue simulation Analogue simulation Lattice structure Lattice structure
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| GB/T 7714 | Zhang, Lizheng , Liu, Hao , Yao, Haihua et al. 3D printing of hollow lattice structures of ZrO2(3Y)/Al2O3 ceramics by vat photopolymerization: Process optimization, microstructure evolution and mechanical properties [J]. | JOURNAL OF MANUFACTURING PROCESSES , 2022 , 83 : 756-767 . |
| MLA | Zhang, Lizheng et al. "3D printing of hollow lattice structures of ZrO2(3Y)/Al2O3 ceramics by vat photopolymerization: Process optimization, microstructure evolution and mechanical properties" . | JOURNAL OF MANUFACTURING PROCESSES 83 (2022) : 756-767 . |
| APA | Zhang, Lizheng , Liu, Hao , Yao, Haihua , Zeng, Yong , Chen, Jimin . 3D printing of hollow lattice structures of ZrO2(3Y)/Al2O3 ceramics by vat photopolymerization: Process optimization, microstructure evolution and mechanical properties . | JOURNAL OF MANUFACTURING PROCESSES , 2022 , 83 , 756-767 . |
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Abstract ：
Porous tin oxide-based (SnO2-based) ceramics with lattice structures were prepared by digital light processing (DLP) 3D printing technology. A 57 wt% SnO2-based DLP slurry was prepared by rheological experiments. By optimizing the exposure time, the DLP process for preparing SnO2 based ceramics had better molding accuracy. The printing size error could be controlled at about 1.8%. The degreasing and sintering curves were obtained by thermogravimetric-differential scanning calorimetry (TG-DSC) analysis, and the SnO2-based porous ceramics with porosity of 50%-71% were prepared. The SnO2-based ceramics with high densification could be obtained by sintering at 1300 degrees C for 2 h. The relative density of printed SnO2-based ceramics was about 92%. In this paper, zinc oxide (ZnO) was selected as a sintering additive to promote the densification of SnO2 ceramics. According to the characterization methods of scanning electron microscopy(SEM), X-ray diffraction(XRD), Energy dispersive spectrometer (EDS) and relative density, the optimum doping amount of ZnO was 9 wt%. The influence of pore structure on compressive strength was analyzed by finite element simulation and compressive test. The compressive strength of porous ceramics could be reduced from 1.56 MPa to 0.27 MPa by controlling the porosity of the porous lattice from 50% to 71%. The compressive strength of the solid block was 160 MPa. In this study, the porous SnO2-based ceramics prepared can be used in porous electrodes, lithium-ion batteries, super capacitors, catalysts, sensors and other fields in the future.
Keyword ：
Mechanical properties Mechanical properties SnO2-Based ceramics SnO2-Based ceramics Porous lattice structure Porous lattice structure Densification Densification 3D printing 3D printing
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| GB/T 7714 | Qi, Guoan , Zeng, Yong , Chen, Jimin . Preparation of porous SnO2-based ceramics with lattice structure by DLP [J]. | CERAMICS INTERNATIONAL , 2022 , 48 (10) : 14568-14577 . |
| MLA | Qi, Guoan et al. "Preparation of porous SnO2-based ceramics with lattice structure by DLP" . | CERAMICS INTERNATIONAL 48 . 10 (2022) : 14568-14577 . |
| APA | Qi, Guoan , Zeng, Yong , Chen, Jimin . Preparation of porous SnO2-based ceramics with lattice structure by DLP . | CERAMICS INTERNATIONAL , 2022 , 48 (10) , 14568-14577 . |
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Abstract ：
The fabrication of high-precision scaffolds with excellent biocompatibility for tissue engineering has become a research hotspot. Two-photon polymerization (TPP) can break the optical diffraction limit and is used to fabricate high-resolution three-dimensional (3D) microstructures. In this study, the biological properties, and machinability of photosensitive gelatin methacrylate (GelMA) hydrogel solutions are investigated, and the biocompatibility of 3D scaffolds using a photosensitive GelMA hydrogel solution fabricated by TPP is also evaluated. The biological properties of photosensitive GelMA hydrogel solutions are evaluated by analyzing their cytotoxicity, swelling ratio, and degradation ratio. The experimental results indicate that: (1) photosensitive GelMA hydrogel solutions with remarkable biological properties and processability are suitable for cell attachment. (2) a micro/nano 3D printed scaffold with good biocompatibility is fabricated using a laser scanning speed of 150 mu m/s, laser power of 7.8 mW, layer distance of 150 nm and a photosensitive GelMA hydrogel solution with a concentration of 12% (w/v). Micro/nano additive manufacturing will have broad application prospects in the tissue engineering field.
Keyword ：
micro micro nano 3D printed scaffold nano 3D printed scaffold two-photon polymerization two-photon polymerization femtosecond laser femtosecond laser
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| GB/T 7714 | Yuan, Yanping , Chen, Lei , Shi, Ziyuan et al. Micro/Nanoarchitectonics of 3D Printed Scaffolds with Excellent Biocompatibility Prepared Using Femtosecond Laser Two-Photon Polymerization for Tissue Engineering Applications [J]. | NANOMATERIALS , 2022 , 12 (3) . |
| MLA | Yuan, Yanping et al. "Micro/Nanoarchitectonics of 3D Printed Scaffolds with Excellent Biocompatibility Prepared Using Femtosecond Laser Two-Photon Polymerization for Tissue Engineering Applications" . | NANOMATERIALS 12 . 3 (2022) . |
| APA | Yuan, Yanping , Chen, Lei , Shi, Ziyuan , Chen, Jimin . Micro/Nanoarchitectonics of 3D Printed Scaffolds with Excellent Biocompatibility Prepared Using Femtosecond Laser Two-Photon Polymerization for Tissue Engineering Applications . | NANOMATERIALS , 2022 , 12 (3) . |
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Abstract ：
本发明提供了一种生物医用钛及钛合金抗菌活化表面周期结构的飞秒激光制备方法，提高植入体表面的生物活性和抗菌性能。由于钛合金自身的生物惰性，植入体界面生物活性不够导致骨整合性能并不理想。对钛及钛合金砂纸打磨和抛光处理后，分别用丙酮和无水乙醇对表面进行超声波清洗，得到干净的钛及钛合金样品；将飞秒激光光束固定垂直于样品表面，并使激光聚焦在样品表面；其中，脉冲重复频率1kHz、单脉冲能量0.2μJ‑0.6μJ、脉冲宽度50fs、脉冲中心波长800nm、激光加工线间距为5μm‑15μm、激光扫描速度0.8‑1.2mm/s；钛及钛合金放置于位移台上，相对于激光光斑沿x、y方向移动，x、y方向上的移动定位精度<0.5μm。
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| GB/T 7714 | 相世博 , 袁艳萍 , 陈继民 et al. 一种生物医用钛及钛合金抗菌活化表面周期结构的飞秒激光制备方法 : CN202210044483.X[P]. | 2022-01-14 . |
| MLA | 相世博 et al. "一种生物医用钛及钛合金抗菌活化表面周期结构的飞秒激光制备方法" : CN202210044483.X. | 2022-01-14 . |
| APA | 相世博 , 袁艳萍 , 陈继民 , 张成宇 , 郭馨阳 , 董国臣 . 一种生物医用钛及钛合金抗菌活化表面周期结构的飞秒激光制备方法 : CN202210044483.X. | 2022-01-14 . |
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