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Zeta Potential of Sepiolite in Aqueous System Cong Chen1, a, Fei Wang1, b, Jinsheng Liang1, c, Qingguo Tang1 and Yalei Chen1 1Institute of Power Source & Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China adina0055@163.com, bwangfei36777@163.com, cliang_jinsheng@sina.com Keywords: sepiolite, zeta potential, aqueous system, mineral materials Abstract.
Introduction Sepiolite as a kind of useful industrial mineral materials is widely used in many industrial preparations such as drilling fluids, sorbent, coating and paper [1-3].
Experimental 2.1 Materials The raw sepiolites were received from Henan province of China, whose chemical composition in mass ratio was shown in Table 1.
Turutoglu: Journal of Petroleum Sci. and Engineering.
Vol. 18(2006), p. 1620-1610 [9] Nalan Tekin, Aziz Dinçer and Özkan Demirbaş, et al.: Journal of Hazardous Materials.

Research and Methods Materials and Equipments Research The materials are coconut, agave (palado) roots, agave (palado) leaves, water, aquades, 5,61 grams of KOH, 126.07 grams of oxalic acid, 1 gram phenolphthalein and 95% alcohol.
The top layer is the materials which is used. 3.
Indonesian Journal of Nuclear Science and Technology, 12(2), 75-84
[12] Ohta, Y., dan Tano D., 1997, Aqueous Extraction of Coconut Oil by an Enzyme Assisted Process, Journal Science Food Agriculture., 74, 497-502
Indonesian Journal of Chemical Science, 1(1), 1-6.

Fracture Analysis of Semi-Infinite Interface Crack between Two Dissimilar Orthotropic Composite Materials Li Junlin a,1 Zhang Shaoqin b,1 1School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, P.R.China a lijunlin9726@yahoo.com.cn, bzhangshaoqing@sina.com Keywords: Orthotropic, Interface Crack, Stress Fields, Displacement Fields Abstract: The problem of orthotropic bi-materials semi-infinite interfacial crack was studied, by constructing new stress functions and using composite complex functions methods of material fracture on jz plane.
In References [4-5], in the case of the singularity exponent ελ +−= 2 1 , the stress field near the mode I 、II interface crack tip of double dissimilar orthotropic composite materials was studied.
In the present paper, the theoretical formulas of semi-infinite interface crack between two dissimilar orthotropic composite materials near the crack tip are derived.
Stress Field near Interface Crack Tip of Double Dissimilar Orthotropic Composite Materials [J].Applied Mathematics And Mechanics 2008,8:1045-1052 [5] ZHANG SHAO QIN, YAO HE SHENG and LI JUN LIN .Stress Fields near Mode II Interface Crack Tip of Two Dissimilar Orthotropic Composite Materials[J].Key Engineering Materials Vols.385-387(2008): 585-588 [6] Yang Wei Yang, Li Jun Lin, Zhang Xue Xia.
Composite Material Complex Function Method [M].Beijing: Science Press, 2005

Microwave Joining 95-Al2O3 Ceramics Used Al-Si Alloy as Interlayer Yingna Zhao 1,2,a, Jiachen Liu1,b, Hai Xu1 and Wenli Zhang2,c 1School of Materials Science and Engineering of Tianjin University, Tianjin, China, 300072 2School of Materials Science and Engineering of Hebei United University, Tangshan, Hebei, China, 063000 ayingna_1120@sohu.com, bjchl@tju.edu.cn, ctszhwl@126.com Keywords: Microwave joining, AL-Si alloy, Interlayer Abstract.
Introduction Ceramic materials and ceramic matrix composites (CMC) play important roles in science and technology.
A schematic of ceramics joining used interlayer materials is shown in Fig. 1.
The phenomenon of materials sintered at short time by microwave can be explained that the materials could absorb microwave to heat rapidly, polarize and dielectric loss at electromagnetic field.
Siores, Journal of Materials Processing Technology.

The equation is standardized by the solid modulus Es of corrugated sandwich materials.
The experiments of the Forest Products Laboratory explored the experimental methods of cushioning materials.
Compressive behaviour of corrugated board panels, Journal of Composite Materials, 35(2001)2098-2126
Study of Environmental Protection Packaging Materials for Transportation, Master Paper: Southern Yangtze University, Wuxi, 2003 (in Chinese)
Enhancement of cushioning performance with paperboard crumple inserts, Journal of Packaging Technology and Science, 18(2005) 273-278

Physical properties and mechanical properties of this material are affected by the type of binding materials used, the composition of the binding material, and the temperature during drying process.
The mean compressive strength of a sample without binding materials (Experiment 1) is significant lower the mean compressive strength of a sample with binding material (Experiment 2 - 6).
Physical properties and mechanical properties of this material are affected by the type of binding materials used, the composition of the binding material, and the temperature during drying process.
B., S Rajeswari, Development of calcium phosphate based apatite from hen’s eggshell, Journal of Indian Academy of Sciences, Vol. 28 No. 2 (2005), 115–119
Sampath Kumar, A novel route for synthesis of nanocrystalline hydroxyapatite from eggshell waste, Journal of Materials Science: Materials in Medicine, Vol. 18, No. 9 (2007). 1735-1743

Using pine and fir as test material, the quantitative analysis, using uniform design method to qualitative pine, fir wood block the relationship between mechanical properties and geometrical parameters in the case of triangle, failure characteristics through experimental phenomenon of different materials and different sizes of wood in the triangle block pressure, finally using finite element analysis software ANSYS/LS-DYNA to simulate and analyze test.
Experimental Study 1 Material for tests By changing the specimen width and height dimensions to find out the effects of triangle block load deformation relationship of material and geometry; the triangle block pressure test specimen size was selected by uniform test method. 2 Description of the experimental phenomena By a large number of experimental phenomena can be found in the failure of specimens with certain regularity, the details are as follows: 1.
Acknowledgements The study of this paper is supported by National Natural Science Foundation of China.
Journal Of Structural Engineering: 2001, 901-913 [3] Gupta, Ajaya and G.
Journal of Structural Engineering 113(2): 260-278

In general, natural lignocellulosic fibers (NLFs) have been used for many purposes, such as reinforcement filler in composite materials, since they have low cost and good mechanical properties.
Fibers are defined, by their geometry, as materials with a much higher length than their diameter, and can be classified in two broad groups as synthetic or natural.
Materials and Methods The coconut fibers used were donated by the company Coco Verde (Rio de Janeiro).
Jawaid: International Journal of Polymer Science Vol. 2 (2015), p.1
D’Almeida: Journal of Materials Science Letters Vol. 19 (2000), p. 2151

Figure 1: Work Methodology 2.2 Fibre Material Woven jute fabric and short human hair fibres were used as reinforcement materials.
Research journal of recent sciences, 1, (2012) 128-133
Ansell, Jute-reinforced polyester composites, Journal of Materials Science 20(1985) 4015-4020
Rachchh, Mechanical Performance of Coir Fiber Reinforced Polyester Composite, International Journal of Advanced Materials Science.1(2011)1
Da Costa, Natural lignocellulosic fibres as engineering materials—an overview, Metallurgical and Materials Transactions A. 42(2011) 2963

Experiment Materials.
The other source of the materials was provided by PT.
Kumar, Journal of Materials Processing Tech. 266 (2019) 155–164
Li, Journal of Materials Processing Tech. 319 (2023) 118088
Kim, International Journal of Refractory Metals and Hard Materials 120 (2024) 106578