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A Novel Process to Synthesize NiCoMnO4 Nano-powder for NTC Electro-ceramics Junhua Wang1,2,3,a, Jincheng Yao 1,2,3,b, Zhaoyang Chen1, 2,c , Yanwei Fan1,2,3,d, Dianzeng Jia*4,e 1 Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China 2Xinjiang Key Laboratory of Electronic Information Materials and Devices, Urumqi 830011, China 3Graduate School of the Chinese Academy of Sciences, Beijing 100049, China 4 Institute of Applied Chemistry, Xinjiang University, Urumqi 830046, People’s Republic of China awangjh@ms.xjb.ac.cn, bcqyaojincheng@163.com, cczy@ms.xjb.ac.cn, dfanyanwei@ms.xjb.ac.cn, e jdz@xju.edu.cn Keywords: NiCoMnO4 nano-powder, thermistor, negative temperature coefficient (NTC) Abstract A pure spinel-type phase was attained by solid state reactions at room temperature, with no intermediate compounds.
The crystalline structure of the as-sintered sample was analyzed with X-ray diffraction (XRD) (Bruker D8) using Cu Ka radiation at 40 kV and 25 mA.
As expected, the structure consists of a solid solution of nickel manganese oxide with a cubic spinel structure and the manganese cobalt oxide with complete inverse spinel structure.
That is, 1175◦C - 2 h calcined NiCoMnO4 ceramics has AB2O4-type tructure with a cubic spinel structure.
This is a typical composite for spinel structure solid-solution-based commercial NTC thermistors.

Although a number of ways have been developed for producing porous materials, it still remains much challenge in producing porous films with controlled pore sizes, fully exposed pores (on the surface), and highly ordered periodic structure.
As seen from Fig.4B, the membrane with 40% PEO has much more fibrous structure rather than micro pores.
This combination of fiber and pore structure makes the membrane have a higher contact angle.
(The effects of gas rate, air gap length, and PEO content on the structure of the membrane were discussed.)
[18] Heiner S, Lidietta G, Emma P and Enrico D, In Reference Module in Chemistry, Molecular Sciences and Chemical Engineering, 2017, ISBN 9780124095472, [19] Mathias U, In Reference Module in Chemistry, Molecular Sciences and Chemical Engineering, 2017, ISBN 9780124095472.

The structure of the turbine nozzle is complex for its thickness of the outer ring and inner cone is very dissimilar and this leads to the porosity in the inner cone area.
Fig. 1 The structure diagram of the turbine nozzle made by K465 alloy Experimental Procedure The K465 master alloy was casted by ZG0.5 vacuum induction furnace and its normal chemistry is shown in Table 1.
Table 1 Normal chemistry of K465 Alloy Element C Cr Co Mo W Al Ti Nb Zr B Ni [Wt%] 0.13~0.20 8.00~9.50 9.00~10.50 1.20~2.40 9.50~11.00 5.10~6.00 2.00~2.90 0.80~1.20 ≤0.002 ≤0.035 balance Results and Discussion Study on the porosity of the nozzle’s inner cone.
According to the turbine nozzle’s structure and the K465 alloy’s low plasticity, the casting stress should be reduced to enhance the casting’s crack resistance property.
Since the crystal structure of cobalt is similar to the K465 matrix, the matrix crystallized on the cobalt [8].

Then the Centrifugal pump Hybrid Grid model was built with muti-block structure and octree style.The final structure parameters were obtained by CFD numerical simulation optimization.
And it is need to design a new kind of structure of centrifugal pump, which can not only improve the ability of anti-cavitation but also supply sufficient fuel while the engine is starting up[1].
Based on the performance parameters of combination aircraft fuel centrifugal pump, the structure parameters can be decided.
Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D.
Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000)

As reported in the literature, the chemistry of urethanes allows one to distinguish among these three materials: polyurethanes, polyurea and hybrid polyurethane-polyurea products.
The main difference in the chemistry of these materials stands on the combination of an isocynate component with amine (-NH2) terminated resins rather than hydroxyl (-OH) found in polyurethanes families.
The interest came from the observation that in the presence of such critical conditions the application of an elastomer coating on the structure improves the dissipation of the event’s energy, thus considerably limiting the damage to the structure.
It was proven that the structure presented significantly enhanced shock resistance [6].
Balizer, paper presented at Polyurea Properties and Enhancement of Structures under Dynamics loads 2005, Airlie, VA

The morphology and structure of PST nanostructures was characterized by SEM and TEM.
Then formamide was added into the mixture to stabilize the perovskite structure.
The PST nanotube is a polycrystalline perovskite structure and its diameter is about 220 nm
Progress in Solid State Chemistry.
Journal of Solid State Chemistry.

Results and Discussions Effect of Hydrocarbon Compositions and Structures on Wax Crystallization.
The effects of the compositions and structures of the crude oil on wax crystallization are illustrated in Figure 1 and Table 2 respectively.
Journal of Physics and Chemistry of Solids, 1993. 54(6): p. 639-670
The Journal of Physical Chemistry, 1993. 97(28): p. 7342-7350
Industrial & engineering chemistry research, 1997. 36(11): p. 4977-4983

During the past few decades many countries have developed several Microwave limb sounders to improve our understanding of stratospheric ozone chemistry and dynamics, the interaction of composition and climate and pollution in the upper troposphere.
The Earth Observing System(EOS)MLS The overall scientific objectives of EOS MLS [4] are to: 1) Determine if stratospheric ozone chemistry is recovering, 2) Quantify aspects of how composition affects climate, and 3) Study aspects of pollution in the upper troposphere.
Superconducting Submillimeter-wave Limb-emission Sounder Exposed Facilities(EF) of the Japanese Experimental module(JEM) of the International Space Station(ISS) -----JEM/SIMILES JEM/SMILES’s mission [10] is focusing on the detailed halogen chemistry related to ozone destruction.
Conlusion We have described the five existed MLS systems’s structure and analyzed their capabilities and performances.

Crystal structure and coercivity of electrodeposited nickel films E.V.
Scanning electron and atomic force microscopies reveal granular structure of the films with varying grain size and surface roughness in dependence on deposition conditions.
DC electrodeposited Ni films exhibit a non-uniform surface structure with micropores, defects and flake-like grains.
It means in these grains the two-domain or multi-domain magnetic structure is possible.
Samardak, J Electroanalytical Chemistry 690 (2013) 136

Light induced properties of Chalcones correlated with molecular structure and photophysical properties for permanent optical storage device S.N.
Mashitah1,d and Gurumurthy Hegde1,e * 1Faculty in Industrial Sciences and Technology, University Malaysia Pahang, Gambang – Kuantan:26300, Malaysia. 2Department of Chemical Engineering, R.V.College of Engineering,Mysore Road, R.V.Vidyanikethan Post, Bangalore-560 059, India 3Industrial Chemistry Division-Department of Chemistry, Mangalore University, Mangalagangothri-574199, Mangalore, India bksaroj35@gmail.coma,c,yuvaraj.chem123@gmail.comb,syntheticstrategies@gmail.comd, murthyhegde@gmail.come* Keywords: Photoisomerization, Chalcones, electron donating groups, Keto-enol tautamerism.
Sample preparation: The structures of the intermediates and desired products were confirmed by spectroscopic methods: IR spectra were recorded using a “Perkin Elmer (670) FTIR spectrometer” and 1H NMR (500MHz), 13CNMR (100MHz) were recorded using “Ultrashield plus, Bruker 500MHz”.