利用高能真空微波辐照,仅以SiO2和人造石墨粉为原料,便捷快速地合成得到结晶良好的β-SiC晶粒.在利用各种表征手段综合分析SiC晶粒微观结构的基础上,确认高能微波辐照条件下,β-SiC晶粒的生长过程符合“光滑界面的二维形核生长”机制.借助于电子背散射衍射技术(EBSD)进行的原位解析发现,生长最快的{211}面在晶粒长大过程中逐渐被超覆,通过形成{421}过渡晶面而最终演变为{220}晶面,并成为晶粒的侧面;而生长最慢的{111}面则成为最后保留下来的六角形规则晶面.EBSD的解析结果为SiC晶粒生长过程中晶面演变提供了直接的实验证据.
参考文献
| [1] | Xie M L,Luo D L,Xian X B,et al.Nano-SiC ceramic sintering at ultra-high pressure and high temperature.Journal of Inorganic Materials,2008,23(4):811-814. |
| [2] | Wu Y J,Zhang Y F,Yang Z X,et al.Catalyst-free method of preparing β-SiC nanowhiskers by using carbon whiskers.Journal of Inorganic Materials,2005,20(3):740-744. |
| [3] | Zhao D F,Wang H Z,Li X D.Development of polymer-derived SiC fiber.Journal of Inorganic Materials,2009,24(6):1097-1104. |
| [4] | Feng D H,Jia T Q,Li X X,et al.Catalytic synthesis and photoluminescence of needle-shaped 3C-SiC nanowires.Solid State Communications,2003,128:295-297. |
| [5] | Fan J Y,Wu X L,Chu P K.Low-dimensional SiC nanostructures:fabrication,luminescence,and electrical properties.Progress in Materials Science,2006,51(8):983-1031. |
| [6] | Magyar A P,Aharonovich I,Baram M,et al.Photoluminescent SiC tetrapods.Nano Letters,2013,13(3):1210-1215. |
| [7] | Zhu J,Fan S S.Nanostructure of GaN and SiC nanowires based on carbon nanotubes.Journal of Materials Research,1999,14(4):1175-1177. |
| [8] | Kim J W,Lee S S,Jung Y G,et al.Synthesis of SiC microtube with villus-like morphology and SiC fiber.Journal of Materials Research,2005,20(2):409-416. |
| [9] | Prabhakaran P V,Sreejith K J,Swaminalthan B,et al.Silicon carbide wires of nano to sub-micron size from phenol-furfuraldehyde resin.Journal of Materials Science,2009,44(2):528-533. |
| [10] | Li G Y,Li X D,Wang H,et al.SiC nanowires grown on activated carbon in a polymer pyrolysis route.Materials Science and Engineering:B,2010,166(1):108-112. |
| [11] | Kim J W,Myoung S W,Kim H C,etal.Synthesis of SiC microtubes with radial morphology using biomorphic carbon template.Structural Materials Properties Microstructure and Processing,2006,434(1/2):171-177. |
| [12] | Hao Y J,Jin G Q,Han X D,et al.Synthesis and characterization of bamboo-like SiC nanofiber.Materials Letters,2006,60(11):1334-1337. |
| [13] | Wu X Y,Jin G Q,Guo X Y.Effects of the amounts of Fe catalyst on stacking faults and morphologies of β-SiC.New Carbon Materials,2005,20(4):324-329. |
| [14] | Lin L W.Synthesis and optical property of large-scale centimeterslong silicon carbide nanowires by catalyst-free CVD route under superatmospheric pressure conditions.Nanoscale,2011,3:1582-1591. |
| [15] | Lorenzzi J,Jegenyes N,Lazar M,et al.3C-SiC heteroepitaxial growth by vapor-liquid-solid mechanism on patterned 4H-SiC substrate using Si-Ge melt.Crystal Growth and Design,2011,11:2177-2182. |
| [16] | Stephane B,Laurent A,Gabriel F,et al.Investigation of 3C-SiC growth on Si(111) by vapor-liquid-solid transport using a SiGe liquid phase.Journal of Crystal Growth,2012,354(1):119-128. |
| [17] | Maher S,Gabriel F,Bilal N,et al.Characterization of a 3C-SiC single domain grown on 6H-SiC (0001) by a vapor-liquidsolid mechanism.Crystal Growth and Design,2006,6(11):2598-2602. |
| [18] | Wang F,Wang Q S,Cui Q L,et al.Self-catalytic synthesis of β-SiC nanowires by direct current arc discharge.Chinese Journal of Inorganic Chemistry,2009,25(6):1026-1030. |
| [19] | Lu B,Liu J X,Zhu H W,et al.SiC nanowires synthesized by microwave heating.Journal of Inorganic Materials,2007,22(6):1135-1138. |
| [20] | Carassiti L,Jones A,Harrison P.Ultra-rapid,sustainable and selective synthesis of silicon carbide powders and nanomaterials via microwave heating.Energy and Environment Science,2011,4:1503-1510. |
| [21] | Fu Q G,Li H J,Shi X H,et al.Microstructure and growth mechanism of SiC whiskers on carbon/carbon composites prepared by CVD.Materials Letters,2005,59(19/20):2593-2597. |
| [22] | Niu J J,Wang N W,Xu N S.Field emission property of aligned and random SiC nanowires arrays synthesized by a simple vaporsolid reaction.SolidState Sciences,2008,10:618-621. |
| [23] | Chiu S C,Huang C W,Li Y Y.Synthesis of high-purity silicon carbide nanowires by a catalyst-free arc-discharge method.Journal of Chemical Physics C,2007,111(28):10294-10297. |
| [24] | Zhang R Q,Lifshitz Y,Lee S T.Oxide-assisted growth of semiconducting nanowires.Advanced Materials,2003,15(7/8):635-640. |
| [25] | Noboru O,Tatsuo F,Masakazu K,et al.Growth of large high-quality SiC single crystals.Journal of Crystal Growth,2002 (237/238/239):1180-1186. |
| [26] | 孟永强.双重加热法合成碳化硅晶片的研究.中国地质大学(北京)博士论文,2008:91-96. |
| [27] | Wang J G,Liu S,Ding T,et al.Synthesis,characterization,and photoluminescence properties of bulk-quantity β-SiC/SiOx coaxial nanowires.Materials Chemistry and Physics,2012,135(2/3):1005-1011. |
| [28] | Huang S,Wang J G,Liu S,et al.Study on the preparation and micro-structural characterization of SiC nanowires obtained by direct microwave heating.Applied Mechanics and Materials,2013,320:25-29. |
| [29] | 杨平.电子背散射技术及其应用.北京:冶金工业出版社,2007:53-55. |
| [30] | Zhang L G,Yang W Y,Jin H,et al.Ultraviolet photoluminescence from 3C-SiC nanorods.Applied Physics Letters,2006,89:143101-1-3. |
| [31] | 施尔畏.碳化硅晶体生长与缺陷.北京:科学出版社,2012:252. |
| [32] | 周伟民.一维碳化硅纳米材料的制备与性能的基础研究.上海交通大学博士论文,2007:39-40. |
| [33] | Wu R B,Zhou K,Yang Z H,et al.Molten-salt-mediated synthesis of SiC nanowires for microwave absorption application.Crystal Engineering Communications,2013,15:570-576. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%