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The Progress of Amorphous Si-B-C-N Composite Ceramics Feiyi Yanga, Ning Zhang*,b, Miao Sun, Tingting Fu, Hongmin Kan, Xiaoyang Wang Key Laboratory of Advanced Materials and Manufacturing Technology of Liaoning Province,Shenyang University,Shenyang,Liaoning 110044,PR China a 535510543@qq.com, *,b zhangning5832@163.com Keywords: Si-B-C-N ceramics; High temperature creep; Amorphous structure Abstract: This article reviews the synthesis of Si-B-C-N ceramics, and the characteristics and principle of fabricating Si-B-C-N ceramics by using different precursors.
The investigation on amorphous Si-B-C-N ceramics not only can help people to further understand the material thermodynamics and kinetics of the material crystallization, atomic diffusion, and phase equilibrium, but also make a certain contribution to the control of the material structure and the further optimization of high-temperature performance.
The researches indicate that the ceramic materials prepared using organic precursor as raw materials has many advantages, such as even composition, stable non-crystalline structure, high-temperature stability, high temperature oxidation resistance and creep resistance and so on.
Liu: Progress In Chemistry Vol. 19(2007),p.1792-1798(In Chinese) [9]T.

Wherein the magnitude of zeta potential augments with the increase of calcium deficiency in the CDHA structure.
According to the EDX spectra, calcium, phosphorus, oxygen and carbon creating carbonated hydroxyapatite structure were detected in the sample C162 (Fig. 2b, 2d ).
The specific bands of phosphate groups (PO43−) characteristic to hydroxyapatite structure were observed at 589, 646, 962, and 1000 –1160 cm−1.
The CO23- groups, that can substitute both PO43- and OH- ions in the HA structure appeared as 1479, 1416, and 875 cm-1 wave numbers.
Yoshioka, Arsenic Removal by Hydroxyapatite-Based Ceramics, Chemistry Letters 35 ( 2006) 856-857. doi:10.1246/cl.2006.85 [17] R.

One dimensional (1D) nanostructure materials such as nanowires, nanofibers, and nanorods with porous structures have potential for use in various applications.
Polyethersulfone (PES) is one of the special engineering plastics with superior performance and structure.
Another common technique for the synthesis of membranes with asymmetric structure is phase inversion.
Chirachanchai: Journal Chemistry Society: Vol. 130 (2008), p. 15466
Chemistry Int.

Synthesis and Photoluminescence Property of Ca3Y2-xSmxWO9 Phosphors Jingjing Ru 1, a, Meizhen Zhou 1, b, Bing Zhao2, c, Guiyang Yan 1, d and Shaoming Ying 1, e 1Department of Chemistry, Ningde Normal University, Ningde 352100, China 2Department of the Arts, Ningde Normal University, Ningde 352100, China ajing3032357@163.com, bzmz66@126.com, cwoshizhaobing@outlook.com, dyingshaoming@126.com, eygyfjnu@163.com Keywords: Sm, Tungstate, Phosphor.
The results showed that these phosphors are tetragonal structures.
Being compared with the JCPDS standard card, the diffraction peaks of CaYW:5mol% Sm3+ at 1100 ºC are consistent with JCPDS 38-0218, which indicates that the obtained samples have the tetragonal structures.
The structures of the samples were characterized by X-ray diffraction.

For the mineralogy and crystal structure were characterized by a powder X-ray diffractometer.
On the other hand, the XRD pattern as shown in Fig. 2(b) indicated an amorphous structure of chitosan film.
As observed, after film forming process, the crystalline structure of chitosan change.
While, the peak at 1050 cm-1 indicates the saccharide structure.
Melnig, Physico chemical properties of chitosan film, Central European Journal of Chemistry,CEJC. 2 (2004) 638-647

This kind of aluminum nitride whiskers possess smooth surface, uniform length, straight whisker, and a long cylindrical structure with a diameter of 4-6 μm and a length diameter ratio of 40-100.
Since Kohn discover the existence of aluminum nitride whiskers, people became increasingly preoccupied with such a single crystal with ideal crystal structure [9].
Whiskers are long cylindrical structure, with a diameter of 4-6 μm, length diameter ratio is 40-100.
(2) Aluminum nitride whiskers by precursor preparation have smooth surface, uniform length and straight whisker, a long cylindrical structure with a diameter of 4-6μm , and length-diameter ratio of 40-100.
References [1] Li Guangyu, Li Zidong and Jin Ye. properties of whisker and its application progress, thermosetting resin,2000,15 (2): 48-51 [2] Pan Jinsheng, CHAN Wing-Wah. whisker and its application of journal of composites,1995, 12 (4): 1-7 [3] Wei ming, Wang chunbo, Ying; progress of inorganic whisker research, Salt LakeResearch,2004,12 (4): 58-62 [4] Li Qiang , Jin Zhiliang and Zhang Zhihong. application and synthesis of inorganic whisker materials, the progress of chemistry,2003, 15 (4): 264-273 [5] Yuan Jianjun. research progress of whisker, materials science and technology,1996, 14 (4): 15-21 [6] Jiecai Han, Shanyi Du.Combustion synthesis of AlN whiskers,SCI,2006,41:1697-1703 [7] Weimer A W, Cochran Ga , Eisman Ga , et al.Rapid Process for Manufacturing Alumunum Nitride Powder,Journal of the American Ceramic Society,1994,71 (1) : 3-18 [8] Slack Ga , Mcnell Y T F.Growth of High Purity AlN Crystals,[J]Crystal Growth,1976 ,34 : 263-270 [9] Kohn Ja , Cotterpg, Potter Ra.Synthesis

Since it is well known that properties are determined by composite structure [1], there are constant efforts to acquire control over the structure formation.
Such structures possess so called multi level hierarchy of structure.
Visible agglomerated structure.
This is in a good agreement with structures published in literature [2,7].
Extremely agglomerated structure is visible.

Polymethyl methacrylate (PMMA) is one among few known photo-polymeric resin useful in lithography for fabricating structures having better mechanical properties to meet the requirement in electronics and biomedical applications.
The Royal Society of Chemistry 2016.
Photopolymerization of methyl methacrylate: effects of photochemical and photonic parameters on the chain length.The Royal Society of Chemistry (2014), Polym.

Meso-scale structures are formed on a silicon surface using a sulphur hexafluoride (SF6) based dry etching process.
For example, the pocket size chemistry equipment based on so-called 'labon-a chip' may offer opportunities to advance the medical field.
For longer processing times the anisotropic nature might not be maintained because of the absence of surface passivation components in the plasma chemistry.

Therefore, it is advisable to use it only in pre-stressed structures.
Concrete structures with non-metallic reinforcement (1980) Stroyizdat, p. 144
Chemistry of cement and concrete (1961) State Publishing House of literature for construction, architecture and building materials, p. 646
Features stress-strain state of the structures of complex type.
Chemistry of cement (1996) World, p. 560