
6
中国材料进展
Y,Si0, [ J]. Jounal of Europan Cergmic Society, 2009, 29 551 557.
[11] Sun Z Q, Wang J Y, Li M S, et al. Mechanical Properties and
Damage Tolerance of Y, SiO, [ J]. Joumal of European Ceramic Society,2008,28; 2 895 2 901.
[12] Sun Z Q, Zhou Y C,Wang J Y, et al.Themmal Properties and
Thermal Shock Resistance of y-Y, Si, O, [J]. Am Ceram, 2008 91(8) : 2 623 2 629.
[13] Sun Z Q, Zhou Y C, Wang J Y, et al. y-Y,Si, O,, a Machin-
able Silicate Ceramics; Mechanical Properties and Machinsbility[J]. Am Ceram Soc, 2007, 98(8) : 2 535 2 541.
[14] Tong Q F, Wang J Y, Li Z P, et al. Low-Temperature Synthe
sis/Densification and Properties of Si, N, O Prepared with Li, O Additive[J]. Joumal of European Ceramic Society, 2007, 27 : 4 767 4 772.
[ 15] Gilreath M C, Castellows L. High Temperature Dielectric Proper
ties of Candidate Space-Shuttle Thermal Protection System and Antenna-Window Material [ R]. NASA TND-7523. Washington: NASA,1974: 153
[16] Brazel J P, Fenton R. ADL-4D: A Silica/Silica Composite for
Hardened Antenna Windows[ C]. Georgia Institute of Technology Proceedings of the 13 Symposiumon Electro-Magnetie Windows, 1976.
[17]Hu Liancheng(胡连成),Li Yi(黎
义),YuQiao(于
翘),etal.俄罗斯航天透波材料现状考察[J],Aerospace Materials & Technology(宇航材料工艺),1994, 24 (1): 4852
Economy, Exploratory development on fomation of high
[18] J.
strength, high modulus boron nitride continuous filament yarme[R]. AD 901949, 1972.
[19]ZhangMingxia(张铭霞),
Cheng Zhiqiang(程之强),Ren Wei
营 H H
第31卷
(任卫),eal.前驱体法制备氮化硼纤维的研究进展[J].Adegnced Ceramics(现代技术离瓷),2004,25(1) 21 25.
[20]Han Guifang(韩桂芳),Zhang Litong(张立同]),Cheng Laifei
(成来飞),eral.二维石英纤维增强多孔Si,N,-Sio,基复合材料的制备及其力学性能[J],ActaMateriae Compositae Sinice(复合材料学报),2007,24(1):9196.
[21]Wang Siqing(王思青),Zhang Changnui(张长瑞),Cao Feng
(曹
峰),etαl.先驱体浸溃装解法制备三维编织石英纤
维/氮化物复合材料[J].Rare Metal Materials and Engineering(帮有金属材料与工程),2007,36(Suppl.1);615618.
[22] Goldend K E. The Prediction and Measure of Dielectric Proper-
ties and RF Transmission through Ablating BN Antenna Windows[C]//AIAA 81 1085, AIAA 16 Thermophysical Confer-ence.
Califormia; Palo Alto. 1981 : 23 25
[ 23] J. ARNOLD, L. T. HANAWA, Plasma ARC Test Technique for
Evaluating Antenna Window RF Transmission Performance [ R]. Washington D C; American Institute of Aeronautics and Astro-nautics, AIAA 82 0900, 1982: 138 144.
[24]CaoJiang(曹江.介质材料电避参数测量综速[J].Jour
nal of Astronautic Metrology and Measurement(宇航计测技术), 1994, 13(3) : 30 34.
[25] Cregory A P, Etzel S, Clarke R N. Precise Measurements on
Dielectric Reference Liquids Over the Temperature Range 5 50/ spl deg/C Using Coaxial Line Methods [ C ]. Conference on Precision Electromagnetie Measurements Digest: 2000 : 455 456.
[26] Baker-Jarvis J, Janezie M, Riddle B, et al. Dielectric and Con
ductor-Loss Characterization and Measurements on Eleetronic Packaging Materials[ C]. NIST Technical Note 1520 , 2001.
格格管容
警警营警警警警警
金属-有机骨架在烷烃/烯烃分离中节约能源
塑料行业需要大量的纯的乙烯和丙烯来生产聚(乙烯)和聚(丙烯)。但这些化合物必须从原油在500-600℃派生出来的烃类混合物中分离。烷烃/烯烃混合物(如丙烷/丙烯)的分离是通过将混合物冷却至-100℃,随后进行低温精馏实现的,此过程需要巨大的能量输人。为了有效节省能源,加州大学伯克利分校以及国家标准与技术研究院(NIST)的研究人员在JeffreyR.Long的领导下,已经开发出一种金属-有机骨架(MOF)材料,能在较高的温度下进行分离操作。铁(II)金属-有机骨架(MOF)可以在318K从丙烯中分离丙烷,因为铁(IⅡI)协调区域选择性地吸附烯烃化合物的碳-碳双键。《科学》杂志报道指出,当量分子的丙烷/丙烯混合物在318K流经金属-有机骨架时,在出口处产生的丙烷均被铁(II)吸附;对于乙烷/乙二醇混合物也获得类似的结果。金属-有机骨架解吸烯烃后,还可进行重复的分离操作。
(摘译自(MRSMaterialsBulletin))