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Radiman1, f 1School of Applied Physics, Faculty of Science & Technology (FST), Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor Darul Ehsan, Malaysia. 2School of Chemistry & Food Technology, Faculty of Science & Technology (FST), Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor Darul Ehsan, Malaysia.
The stabilization mechanism of Cu2+ species in the ZnO structure is yet to be understood fully.
Nevertheless, it is proposed that Cu2+ may enter the regular structure of ZnO by occupy octahedric positions for this species.
In this way, we propose that the material prepared via this method corresponds to the Cu0.1Zn0.9O structure.

The significant features of hysteresis-free, infinite position sensitivity, high speed and high precision, make it very adaptive to high-acceleration, high frequency motivation and high-precision positioning system [8-10]. 2-DOF Positioning System Structure As shown in Fig.1, the 2-DOF positioning system is mainly consists of baseboard, VCA, X and Y axial positioning tables, flexible decoupling mechanism, linear gratings and guiding rails.
Preloaded connecting rod, 14.Guiding fin, 15.Y axial VCA Fig. 1 2-DOF system structure with the Y axial VCA through the flexible decoupling mechanism.
System Dynamic Model As shown in Fig.2 and Fig.3, according to the different structure of X and Y axial positioning system, their dynamic models are developed respectively.
Tong: Materials Chemistry and Physics, No.40(1995), p.147-161 [2] Yasuo Wada: Current Applied Physics No. 2(2002), p. 331-334 [3] Nihal Sinnadurai: Microelectronics Reliability No.40(2000), p.1073-1080 [4 ] Nobuto Yamazaki and Minoru Torihata: U.S.

CeO2 Ce1−X 4+ CeX 3+ O2−X/2VoX/2+X/4 O2 (Vo: oxygen defect, 0structure and/or lower valence metal ion to shift the equilibrium of Eq. (1) to the left hand side by forming oxygen defect.
It can be seen that mica possesses irregular platy structure with particle size range of 2-10 µm.
Fig. 2 TEM micrographs of (a) mica, (b) calcia-doped ceria/mica, (c) 5 wt% silica coated calcia-doped ceria/mica after coating time of 3 h at higher magnification 544 542 540 538 536 534 532 530 528 526 0 10000 20000 30000 40000 50000 f e d c b a N(E)/E(Arbt.Unit) Binding Energy/eV 0 200 400 600 800 1000 1200 1400 0 50 100 g f e d c b a Conductivity/(µs/cm) Time/min Ce0.8Ca0.2O1.8/ K0.8Li0.27Ti1.73O4 nanocomposite SEM micrograph (Fig. 5) shows that potassium lithium titanate possesses regular platy structure with particle size range of 15-20µm.
A. ryuabukin, in Analytical chemistry of Yttrium and the Lanthanide Elements; ed.

According to nucleation theory [viii] and to the negentropic model by Spaepen [ix] for the estimation of σ, ∆G* reads: ĘG* = 16π 3 ⋅ σ 3 ĘG2 ⋅ f (ϑ) with σ=α⋅ Ę Sf NA1/3 Vm 2/3 ⋅T (1) ƒ(ϑ) is a catalytic potency factor in the case of heterogeneous nucleation, ∆G the Gibbs free energy difference between the solid and the liquid phase, ∆Sf the entropy of fusion, NA the Avogadro number, Vm the molar volume, T the temperature, and α a factor depending on the structure of the nucleus [x].
The interfacial energy σ depends on the structure of the nucleus.
The dependence of the activation energy on the crystallographic structure of the nucleus has a strong impact on the solidification of metastable phases.
Walker, in The Physical Chemistry of Process Metallurgy, edited by G.R.

All the test steels exhibit a lath martensite structure, and a typical example is shown in Fig. 1 (a), which is a SEM backscattered electron micrograph obtained from the test steel S1 after 5500 hours of aging.
Fig. 1 SEM backscattered electron micrographs of steel S1 after aging for 5500 h, showing a) the martensite lath structure; b) different types of precipitates: Ta-containing, Laves phase (Fe2W), M23C6, and Cu.
Although TEM imaging can reveal the size and distribution of small precipitates, APT is more powerful in identifying their chemistry, in particular the Ta-containing precipitates.
Summary All the new Z-phase strengthened 12% Cr steels exhibit a martensite lath structure.

Preparation of Cf/HfC Composite by Reactive MeltInfiltration Using Hf-based Alloy Zhenhuan Yanga, Hong Zhangb and Yicong Yec* Department of Materials Engineering and Applied Chemistry, National University of Defense Technology, Changsha 410073, China a18874816640@163.com, b389695459@qq.com, c18505993519@163.com Keywords: Hf-based alloy, Reactive melt infiltration, Cf/HfC composite.
Introduction C/C composites capable of high strength, low density, low ablation rate, high thermal shock resistance, low thermal expansion coefficient and increasing of strength with the temperature rise during 2000℃, are required for advanced composite in high temperature environment, but the poor oxidation resistance greatly limits their applications in high temperature structures in aerobic environment [1-3].
After being polished with 3000-grit paper, the microscopic structure, phase composition and constituent were analyzed by microscope, SEM, XRD and EDS.
The infiltration organization structures mainly consisted of HfC, ZrC, Hf2Si, Zr2Si phases and a small amount of Hf, Zr, TaC phases.

Jahangirian et al. [6] studied the thermal and chemical structures of highly diluted biogas by N2 in counter-flow diffusion flames.
[6] Jahangirian S, Engeda A, Wichman IS, Thermal and chemical structure of biogas counter flow diffusion flames.
Barlow, Structure of turbulent non-premixed jet flames in a diluted hot coflow, Proc.
Mechanism and stabilization of nitrogen chemistry in combustion.

Originally, these materials were composed of acrylates, which formed robust, linked structures.
Onyx's porous, filament-based structure makes it useful in high-stress applications, but its values are still lower than those of conventional metals.
Thickett, Functional Materials for DLP-SLA 3D Printing Using Thiol–Acrylate Chemistry: Resin Design and Postprint Applications, Published April 7, 2022 ACS Applied Polymer Materials, https://doi.org/10.1021/acsapm.2c00358 [13] Serge Corbel, Olivier Dufaud, Thibault Roques-Carmes, Materials for Stereolithography, https:/doi.org/10.1007/978-0-387-92904-0_6 [14] by J Mogan, W.
Clienti, Fatigue limit by thermal analysis of specimen surface in mono axial traction test, ICEM 14 – 14th International Conference on Experimental Mechanics, https://doi.org/10.1051/epjconf/20100638010 [21] Jason Miranda, Alexander Hunt and Jonathon Tran, Material Testing of Additively Manufactured Onyx Filament, [22] Gyu-Wol Lee, Tae-Hyun Kim, Jong-Hwan Yun, Nam-Joo Kim, Ki-Hwan Ahn, Min-Soo Kang Strength of Onyx-based composite 3D printing materials according to fiber reinforcement [23] Dávid Čuchor, Experimental Determination of the Mechanical Properties of Onyx Material, published Conference: Quality Production Improvement and System Safety, DOI:10.21741/9781644902691-2 [24] Raghuram Pipalla, Jens Schuster, Yousuf Pasha Shaik, Experimental Analysis on 3d Printed Onyx Specimens with Honeycomb Infill Structure, published at Journal of Advanced Materials Science and Engineering, [25] Andrei Zoltan Farkas, Sergiu-Valentin Galatanu, Riham Nagib, The Influence of Printing Layer

A Study on the Optimal Configuration Based on Heat Energy Utilization of Yellow Phosphorus Tail Gas in Fine Phosphorous Chemical Enterprises XuQing Liu1,2, a, ShiBin Xia1, b, ZhongLi Cai3, c, DaYin Liu2, d 1 School of Resources and Environment Engineering, Wuhan University of Technology, Wuhan430070, China 2 School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan430073, China 3Hubei Environment Monitoring Central Station, Wuhan430072, China alxqkyq1997@163.com, bxiashibin@126.com,c491058439@qq.com, dldy667@126.com Keywords: yellow phosphorus tail gas; planning as a whole and employing technical measures; fine phosphorous chemical enterprises; optimal configuration of technical measures Abstract: By analyzing the feasibility of comprehensive utilization method of yellow phosphorus tail gas after desulfurized, the author of this article found only the method of heat energy utilization is technically more mature, practical and feasible.
While using the boiler steel structure which run dividually the burning and heat transfer process could resolve above corrosion problem.
So it is not suitable to examine and approve these phosphorus enterprises that only have phosphorus electric furnace but don’t lay out fine phosphorus chemical products.（2）Because sodium hexametaphosphate and sodium tripolyphosphate belong to limited product in National Industrial Structure Adjustment Policy(2011), newly built enterprises should pay attention to updating and upgrading of fine phosphorus chemical products when distributing.
[2] X.Q.Liu，Z.L.Cai: Study on the Product Structure Optimization of Hot Process Phosphate Based on Comprehensive Utilization of Yellow Phosphorus Tail Gas[J].Advanced Materials Research，2012, v 347-353, p 2039-2043

The main reaction product is a hydrated calcium silicate, like CSH gel, with high amount of tetraco-ordinated Al in its structures.
In addition, at the exception of the mixture ratio FA:BS=100:0, high temperature curing was seen to ameliorate the strength at early age through the large occurrence of hydration and polymerization but this improvement of the early strength was also accompanied with the instability of the structure of the hardened paste due to the sudden generation of hydrates, which impeded the development of high strength in a long term.
The structure at 28 days is seen to be denser than that at 7 days and the major products detected through the EDS analysis showed a distribution composed mainly of Si and Al in the round particles of fly ash (position 1), which are identical to the main components of fly ash.
Davidovits, Geopolymer Chemistry & Applications, Institute GEOPOLYMERE (2008).