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Semarang 5 Malang 65145, Indonesia 2Centre of Advanced Materials for Renewable Energy, State University of Malang, Jl.
Thus, supercapacitor electrodes based on the AC/PANi composite show potential as active materials for supercapacitor devices. 1.
However, its drawback is low energy density, although its power density still outperforms other materials [12].
Azad, “Advanced materials and technologies for hybrid supercapacitors for energy storage – A review,” J.
Indonesian Journal of Chemical Science and Technology (IJCST), 5(1), 01-03

Science and Technology of Advanced Materials, Vol. 8 (2007) No.1-2, p.67
Science and Technology of Advanced Materials, Vol. 6 (2005) No.8, p.956
Chemistry of Materials, Vol. 18 (2006) No.10, p. 2567
Materials Chemistry and Physics , Vol 126(2011).
Journal of Applied Polymer Science, Vol 982 (2005).

Liu, "In-situ synthesis of WC-Co composite powder and densification by sinter-HIP," International Journal of Refractory Metals and Hard Materials, 28 (2010), 567-71. 3.
Xiong, "VC, Cr3C2 doped ultrafine WC-Co cemented carbides prepared by spark plasma sintering," International Journal of Refractory Metals and Hard Materials, 29 (2011) 147-152. 4.
Liu, "A novel rapid route for synthesizing WC–Co bulk by in situ reactions in spark plasma sintering," Materials Science and Engineering A 499 (2009), 476-81. 18.
Metals & Hard Materials, 16 (1998), 107-17. 26.
Zhang, "Y2O3- and NbC-doped ultrafine WC-10Co alloys by low pressure sintering," International Journal of Refractory Metals and Hard Materials, 28 (2010), 407-11.

Based on the available academicals materials, these fractures or joints play a key and direct effect on the deformation property, failure property and permeability property for fractured rock mass.
H. (1998)[2] described the fracture coalescence in rock-type materials under uniaxial and biaxial compression.
International Journal of Rock Mechanics & Mining Sciences 2007; 44: 890-902 [6] M.
Fracture coalescence in rock-type materials under uniaxial and biaxial compression.
International Journal of Rock Mechanics & Mining Sciences 2008; 45: 1273-1286

Ultrasonic-assisted drilling (UAD) is a new process used for producing holes in the hard-to-cut and brittle materials at high accuracy and surface quality.
Soda lime glass rectangles 40 mm× 30 mm×6 mm were used as the workpiece material.
Ding: Experimental Studies on Drilling Tool Load and Machining Quality of C/SiC Composites in Rotary Ultrasonic Machining," Journal of Materials Processing Technology , vol. 214, no. 12, pp. 2900-2907, 2014
C. li: Rotary Ultraosnic Machining of Alumina Dental Ceramics: A Preliminary Experimental Study on Surface and Subsurface Damages, Journal of Manufacturing Science and Engineering, vol. 134, pp. 064501-1-064501-5, 2012
Ghai: Optimization of Process Parameters for Drilled Jole Quality Characteristics During Cortical Bone Drilling using Taguchi Method," Journal of the mechanical behavior of biomedical materials, vol. 63, pp. 355-365, 2016.

Materials To determine the best engineering materials for the construction of the alkaline water electrolyzer, suitable materials from the literature review study were evaluated and considered for their attributes.
Selection of materials and components.
The three membrane materials efficiently performed the needed function of separation.
“Hydrogen science and engineering: materials, processes, systems and technology”, John Wiley & Sons (898), 2016
“Design of an alkaline water electrolyzer for hydrogen production”, American Journal of Mechanical and Industrial Engineering, Science Publishing Group, 7 (6), pp. 96-97, 2023

Pawelski: Journal of Materials Processing Technology Vol.125-126 (2002), p. 392 [6] J.G.
Zhang: Journal of materials Processing Technology Vol.72 (1997), p. 293 [7] M.P.F.
Lenard: Journal of Materials Processing Technology Vol. 168 (2005), p. 16 [9] A.
Zhang: Journal of materials Processing Technology Vol.72 (1997), p. 293 [11] J.G.
Lenard: Journal of Materials Processing Technology Vol.80–81 (1998), p. 232 [12] Q.

The connection of these materials always utilizes various technologies.
Development and research status of biomedical titanium alloys [J].Material Science &Technology, 2002, 10(1), 100-106
Materials Processing Technology, 2010, 210(2010):1761-1771
Journal of Materials Science-Materials in Medicine, 2005(16): 229-237
Journal of Materials Processing Technology,2011(211) : 1166-1174

Introduction Two targets exist in the microwave absorbing research: one target is looking for new materials with special high permittivity and permeability, the other is focus on the best way to use the presently available microwave absorbing materials.
In the point of materials, most existing materials are not good enough because the matching property is unsatisfactory.
The reason for this is these materials are either electric loss or magnetic loss.
Effective Medium Almost all microwave absorbing samples are made of composite materials: the matrix material usually is polymer, while the reinforce is microwave absorber.
Liu: Journal of Alloys and Compounds Vol.234 (2006), p.1429–1433.

Nath: Journal of Materials Processing Technology Vol. 183 (2007), p. 321
Pinard: Journal of materials processing technology Vol.209 (2009), p. 387
Ghosh: Materials Science and Engineering A Vol. 352(2003), p. 279
Tricarico: Materials Science and Engineering A Vol. 499(2009) , p.40
Masachika: Journal of Materials Processing Technology Vol. 143–144(2003), p. 242