磁控溅射法制备HAF/YSZ梯度复合涂层及生物性能研究

采用射频磁控溅射技术在Ti6Al4V基体上成功制备了含氟羟基磷灰石梯度复合涂层(HAF/YSZ)。利用X射线光电子能谱(XPS)、电子探针(EDX)、扫描电镜(SEM)等对涂层的成分分布、形貌、界面结合进行表征。通过模拟体液(SBF)实验,分析和评价了HAF/YSZ涂层在模拟人体条件下的生物性能。结果表明,所制备涂层表面粗糙,呈多孔岛状结构,有利于新生骨组织的生长;涂层与基体结合紧密,各层间相互扩散,整体一致性较好;经模拟体液浸泡后,涂层表面有新生物质沉积,表现出较好的生物活性及稳定性;梯度复合涂层较氟含量单一的氟羟基磷灰石涂层具有更好的抗体液溶解能力及稳定性。     

梯度过渡涂层的制备

本文采用多靶磁控溅射技术制备ＴｉＣ／Ａｌ界面梯度过渡层，过渡层由ＴｉＣ和Ａｌ的成分梯度变化组成，其成分由Ａｌ基体侧平缓过渡到ＴｉＣ涂层侧。梯度过渡层的成分变化经ＡＥＳ测定，并和光学金相显微镜观察了涂层形貌。实验结果表明，当梯度层厚主于某临界值后，由内应力所致的表层ＴｉＣ裂纹消除。     

射频磁控溅射制备 HA(+ZrO2+Y2O3)/Ti6Al4V 复合生物活性涂层

采用射频磁控溅射法制备了HA（＋ZrO2＋Y2O3）／Ti6Al4V生物复合涂层．借助于XRD、SEM、FTIR和AFM等对溅射涂层的相组成、微观形貌和界面结合进行了研究，并以模拟体液试验探讨了涂层的生物活性．实验结果表明：磁控溅射的复合涂层呈非晶态，经过退火处理，可以使其转化为晶态；复合涂层的微观表面凹凸不平，并呈现网状结构和较多的孔隙，其孔隙直径约为0．5-2．0μm，孔隙面积占涂层表面积的30％-40％；HA（＋ZrO2＋Y2O3）／Ti6Al4V复合涂层的界面结合强度随（ZrO2＋Y2O3）复合颗粒含量的增大和溅射功率的提高而增强，最高可达59．6MPa．复合涂层在模拟体液中浸泡一段时间后，表面覆盖一层新生物质—含有CO^2-3的类骨磷灰石，其晶粒非常小，它与自然骨中无机相的结构成分相似，表明复合涂层具有良好的生物活性．     

等离子喷涂制备HA/ZrO2复合涂层

采用等离子喷涂技术,在Ｔｉ－６Ａｌ－４Ｖ基体上成功地制备了羟基磷灰石／氧化锆（ＨＡ／ＺｒＯ２）复合涂层,对涂层的微观结构,相组成和结合强度进行了研究,并以模拟体液试验评估涂层的生物活性,结果表明,复合涂层较有较为微观结构,ＨＡ／ＺｒＯ２复合涂层的结合强度明显高于ＨＡ涂层,ＨＡ／６０ｗｔ％ＺｒＯ２涂层的结合强度高达２８．５ＭＰａ,为ＨＡ涂层的２．２倍,复合涂层在模拟体液中浸泡一段时间后,表面覆盖一层     

钢表面梯度结构耐腐蚀铝涂层的制备及研究

为了控制和改善耐腐蚀铝涂层的组成和形貌,首先采用磁控溅射法在Q235钢表面制备铝涂层,然后通过热浸镀法在其表面制备具有一定厚度的耐腐蚀铝涂层。利用扫描电子显微镜及其附带的能谱仪对涂层结构、厚度以及组成进行表征,并通过划痕实验、全浸泡实验对涂层的结合强度、耐腐蚀性能进行研究。结果表明:磁控溅射复合热浸镀法制备的涂层较为致密。利用热浸镀法和磁控溅射复合热浸镀法制备的铝涂层结构均由外层Al层和内层Fe-Al合金层构成,Al层厚度分别为(45.75±6.41)μm和(44.84±3.17)μm,Fe-Al合金层的厚度分别为(150.37±4.95)μm和(138.08±6.05)μm。热浸镀铝涂层与磁控溅射复合热浸镀铝涂层的结合力分别为163.90N和160.25N。热浸镀铝Q235钢、磁控溅射复合热浸镀铝Q235钢的腐蚀失重率约为未涂覆试样的1/12～1/6,后者的腐蚀凹坑更加均匀。     

Ti6Al4V表面HAF/YSZ梯度复合涂层的制备和性能

采用射频磁控溅射技术在Ti6Al4V基体上制备含氟羟基磷灰石(HAF)梯度复合涂层,对涂层的氟含量、物相组成及形貌进行了表征,并分析了梯度复合涂层在模拟人体条件下的生物活性和稳定性。结果表明:复合涂层中的氟呈梯度分布,n(Ca)/n(P)随着涂层中氟含量的增加逐渐减小。HAF/YSZ(Y_2O_3稳定的ZrO_2,简称YSZ)复合涂层在SBF环境下生成的新物质为碳酸类骨磷灰石,氟促进磷灰石相的发育,氟含量呈梯度分布能有效提高涂层的抗体液溶解能力和与基体间的结合性能;HAF/YSZ梯度复合涂层比无氟羟基磷灰石及氟含量单一的涂层具有更好的生物活性和稳定性。     

放电等离子烧结技术制备 Ti合金表面 HA活性涂层

采用放电等离子烧结(SPS)技术，低温、快速地在Ti合金表面制备HA活性涂层。研究了涂层成分和厚度对涂层与基体结合强度的影响，观察了断口形貌。结果表明：随着涂层厚度的减小，结合强度提高；梯度涂层能提高涂层与基体的结合强度；特别是经钝化处理后烧结的试样，涂层与基体的结合强度显著提高，最高达到了64MPa，超过目前使用的生物涂层种植体材料的指标。     

等离子喷涂HA/TiO2复合涂层

采用大气等离子喷涂方法,成功地制备了ＨＡ／ＴｉＯ２复合涂层,对复合涂层的结合强度、微观结构、水浸渍下的表面形貌进行了较为深入的研究,结果表明,由于ＴｉＯ２的加入,ＨＡ／ＴｉＯ２涂层的结合强度明显高于纯ＨＡ涂层,而且导致涂层破坏机理由粘合破坏向内聚破坏转化,这是由于ＨＡ／ＴｉＯ２的复合缓和了涂层与基体间的膨胀系数失配现象,改善了涂层与基体之间的结合,ＳＥＭ观察显示,ＨＡ／ＴｉＯ２涂层表面有一些细小的     

等离子喷涂HA/Ti复合涂层研究 I.结构、组成和力学性能

采用等离子喷涂方法,在Ｔｉ－６Ａｌ－４Ｖ基体上成功地制备了ＨＡ／Ｔｉ复合涂层,并对复合涂层的微观结构、相组成和力学性能进行了研究．结果表明,ＨＡ和Ｔｉ两相均匀地分布于复合涂层中．ＨＡ／Ｔｉ复合涂层的结合强度明显高于纯 ＨＡ涂层,这主要是由于 ＨＡ／Ｔｉ的复合缓和了涂层与基体之间的热膨胀系数失配．ＨＡ／Ｔｉ复合涂层在模拟体液中浸泡一段时间后,结合强度没有明显降低．ＨＡ／Ｔｉ复合涂层的断裂韧性和硬度均高于 ＨＡ涂层．     

等离子喷涂制备HA/ZrO2复合涂层

采用等离子喷涂技术,在Ｔｉ－６Ａｌ－４Ｖ基体上成功地制备了羟基磷灰石／氧化锆（ＨＡ／ＺｒＯ_２）复合涂层,对涂层的微观结构、相组成和结合强度进行了研究,并以模拟体液试验评估涂层的生物活性．结果表明,复合涂层具有较为均匀的微观结构．ＨＡ／ＺｒＯ_２复合涂层的结合强度明显高于 ＨＡ涂层, ＨＡ／６０ ｗｔ％ ＺｒＯ_２涂层的结合强度高达 ２８．５ＭＰａ,为 ＨＡ涂层的 ２．２倍．复合涂层在模拟体液中浸泡一段时间后,表面覆盖一层碳酸磷灰石（ｃａｒｂｏｎａｔｅ－ａｐａｔｉｔｅ）,表明涂层具有良好的生物活性．     

林宏泽视觉设计选

台湾鹿港镇徽征选评审委员台湾区母婴亲善医院识别标志评审委员高雄大学校徽征选评审委员‘高雄2000’标志设计征选评审委员2000高雄奖高市美展设计类评审召集人2000 台湾创意之星设计奖评审委员     

专访瀚清堂创始人赵清:突破惯性思维,呈现书籍设计新创意

众所周知,"DFA亚洲最具影响力设计奖"不仅致力于表彰为亚洲而设计的优秀作品,更重要的是奖励这些优秀作品背后的杰出设计师,嘉许他们为推动亚洲设计所做出的贡献.在2020年"DFA亚洲最具影响力设计奖"的大奖优异作品和金奖获得者中,有一位就是来自中国南京的著名设计师——赵清. 赵清的获奖作品是《莱比锡的选择-世界最美的书2019-2004》书籍设计,这本展现了209本"世界最美的书"的书籍,不仅呈现了赵清书籍设计的功力与水准,更映照着他对书籍设计的热爱和多年来在书籍设计领域的不断探索——1988年,赵清从南京艺术学院设计系毕业后即开始在出版社做书籍设计,迄今从未间断;一路走来,无论是手工时代还是电脑时代,赵清始终在不断突破自我,作品29度荣获"中国最美的书"称号;2000年创办瀚清堂设计有限公司后,在从事商业设计的同时依然坚持书籍设计;用多年的时间收集"世界最美的书",将300多册获奖图书收集于瀚清堂,建立了一个"世界最美的书"的收藏、阅读空间;主编出版《莱比锡的选择-世界最美的书2019-2004》、《翻阅莱比锡-世界最美的书1991-2003》……赵清的设计之路,始终与书籍有着不解之缘,始终充满对书籍的深深情怀.     

Checking of DIIV-1, DINIR-1, and DINS-1 instruments

Conclusions As follows from what has been said, the amount of specific measurements during the checking of DINIR-1 and DINS-1 instruments is quite large. Taking into account the constant addition to the inventory of these instruments as they are being produced, it is desirable, in the authors' opinion, to consider the problem of developing and subsequently producing a special instrument intended for the checking of various types of time interval meters.Translated from Izmeritel'naya Tekhnika, No. 6, pp. 77–81, June, 1971.     

Electrical properties of some (1, 1, 1) intermetallic compounds

Many intermetallic compounds form with a gap in their density of states at the Fermi level, giving rise to relatively large Seebeck coefficients, on the order of –150 to –300 V/deg. at room temperature. Consequently, when combined with reasonable carrier mobilities in the range of 30 to 50 cm2/V-s, half-Heusler compounds, such as MNiSn where M = (Ti, Zr, Hf), become attractive candidates for intermediate temperature (300°C to 600°C) thermoelectric applications. Samples of TiNiSn were prepared by arc melting and homogenized by various heat treatments. The temperature dependence of the electrical resistivity, Seebeck coefficient, and thermal diffusivity of these samples was characterized between 22°C and 900°C. The electrical resistivity and thermopower both decrease with increasing temperature, consistent with semiconducting behavior. The electrical power factor, defined as S2/ where S is the Seebeck coefficient and is the resistivity, appears quite sensitive to the degree of homogenization in the microstructure and values in excess of 25 W/cm-°C2 were observed in nearly single phase alloys within the 300 to 600°C temperature range. A brief survey of other selected ternary intermetallic compounds is also presented.     

赵航中国汽车技术研究中心主任 全国汽车标准化技术委员会副主任委员兼秘书长

Zhao Hang,Senior Engineer at profession level,President of China Automotive Technology & Research Center (CATARC),Deputy Director and Secretary General of National Technical Committee of Auto Standardization (SAC/TC 114),Vice Chairman of Society of Automotive Engineers of China,Deputy President of China Association of Automobile Manufacturers and Chairman o fits subassociation of information,Member of the leading group of the national Project 863 of electric vehide,Member of the leading group of the national dean energy vehicle project,and one of the 50 Outstanding Figures in the 50 years' history of China's auto industry,enjoys special allowance from government.     

Thermal conductivities of hex-1-ene,hept-1-ene,oct-1-ene,and dec-1-ene at 302–374 K

Measurements are reported on the temperature dependence of the thermal conductivity for olefins in the vapor state.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 55, No. 2, pp. 250–255, August, 1988.     

Hyper-cross-linked porous polymers based on 1, 1, 1-trimethyl-3, 3, 3-triphenyldisiloxane and their applications in water treatment

Journal of Materials Science - A series of new hyper-cross-linked porous polymers (HCP-TTDs) were successfully prepared by the Friedel–Crafts alkylation reaction of 1, 1, 1-trimethyl-3, 3,...     

Phase studies in the systems CoS1bMnS,CoS1bZnS,and CoS1bCdS

Phase relationships of the systems CoS1bMnS, CoS1bZnS, and CoS1bCdS are given based on X-ray diffraction. Rocksalt type MnS, sphalerite type ZnS, and wurtzite type CdS form solid solutions with cobalt sulfide. The unit cell dimensions of the Mn_1?xCo_xS, Zn_1?xCo_xS, and Cd_1?xCo_xS mixed crystals obey Vegard's law. Lattice constants of hypothetical rocksalt, sphalerite, and wurtzite type CoS have been extrapolated to be a_o = 505, a_o = 534, and a_o = 380, c_o = 625 pm. The solubility limits determined from lattice constant measurements are 23, 41, and 20 mol% CoS at 1000° C. The solubility of cobalt sulfide in MnS, ZnS, and CdS decreases with decreasing equilibrium temperature. In the case of MnS and CdS the solubility increases with increasing Co/S ratio of the cobalt sulfide, viz. Co₉S₈, CoS (mixture of Co₉S₈ and Co_1?xS with 1 : 1 ratio of Co/S), and Co_0.97S. No detectable solubility of MnS, ZnS, or CdS in cubic Co₉S₈ could be observed. A possible incorporation of little amounts of these sulfides into NiAs type Co_1?xS cannot be excluded.