Characterization and dielectric properties of barium zirconium titanate prepared by solid state reaction and high energy ball milling processes

Dash, S. K.; Kant, Shashi; Dalai, Biswajit; Swain, Mitali; Swain, B. B.

doi:10.1007/s12648-013-0395-0

Cited by 15 publications

(4 citation statements)

References 15 publications

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“…In continuation of our earlier analysis on characterization and dielectric properties of barium zirconium titanate prepared by solid state reaction and high energy ball milling processes [1], the electrical properties of solid polymer sheet have been studied in this work which enable the industry to elicit the characteristic information as regards to its use as insulator having high dielectric breakdown strength, low dielectric loss and the ability to be easily processed and also recycled when cross linked [2,3]. The measurement of dielectric constant is recognized as one of the important tool for understanding the molecular behavior of associating molecules [4].…”

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confidence: 74%

Investigation on Electrical Properties of Solid Polymer Sheets (HDPE AND LDPE) at Audio Frequency Range

2021

EEJP

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Two different groups of solid polymer sheets: low density polyethylene (LDPE) sample of thickness 0.006 cm and 0.007 cm along with high density polyethylene (HDPE) sample of the thickness of 0.009 cm, 0.010 cm were taken in this work. The measurement of electrical properties such as dielectric constant, ε' and dielectric loss, ε'' for LDPE and HDPE polymer sheets have been measured using a dielectric cell. The dielectric cell has been fabricated which consists of two circular parallel plates of pure stainless steel each of 5 cm diameter and 2 mm thickness. An impedance bridge (GRA 650A) was used for measurement of capacitance, C, and dissipation factor, D in the audio frequency (AF) range, 100 Hz to 10 kHz. Different samples were loaded in between the two plates of the cell and the capacitance as well as the dissipation factor were estimated from the dial readings of the bridge. Effect of frequency variation on ε', ε'', relaxation time, τ , dissipation factor, tanδ and ac conductivity, σ were also discussed at audio frequency range. The complex permittivity, ε*, related to free dipole oscillating in an alternating field and loss tangent, tanδ were calculated. The frequency-dependent conductivity, dielectric behavior, and electrical modulus, both real (M') and imaginary (M") parts of LDPE and HDPE have been studied in this work. The values of the real part of the electrical modulus (M') did not equal to zero at low frequencies and it is expected that the electrode polarization may develop in both sheets. These findings reveal an increased coupling among the local dipolar motions in a short-range order localized motion. The analysis of real (ε') and imaginary (ε'') parts of dielectric permittivity and that electrical modulus real (M') and imaginary (M") parts signify poly dispersive nature of relaxation time as observed in Cole-Cole plots.

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confidence: 74%

Investigation on Electrical Properties of Solid Polymer Sheets (HDPE AND LDPE) at Audio Frequency Range

2021

EEJP

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“…Doping terhadap BaTiO 3 menggunakan atom Zr akan membentuk BaZr x Ti 1−x O 3 dengan Zr akan menggantikan posisi atom Ti pada struktur BaTiO 3 . Dikarenakan Zr memiliki jari-jari ion lebih besar, yaitu 0,086 nm dibandingkan Ti yang hanya 0,0745 nm, maka dihasilkan struktur yang lebih stabil [5][6][7][8].…”

Section: Pendahuluanunclassified

Pengaruh Doping Zirkonium (Zr) pada Konstanta Dielektrik dan Struktur Kristal BaZrxTi1−xO3

Nisa

Jamaluddin

Iriani

2016

JFA

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IntisariBarium zirkonium titanat (BaZrxTi1−xO3) dengan variasi mol dopan zirkonium (x) sebanyak 0,01 mol; 0,02 mol; dan 0,03 mol telah disintesis menggunakan metode reaksi fasa padat. Sampel disintering pada temperatur 1100• C dengan waktu tahan selama 2 jam. Sampel dikarakterisasi menggunakan instrumen XRD dan RLC meter untuk mengetahui pengaruh doping terhadap struktur kristal dan konstanta dielektrik BaZrxTi1−xO3. Hasil analisis XRD menunjukkan bahwa BaZrxTi1−xO3 memiliki struktur kristal tetragonal dengan a = b = c. Ukuran kristal BaZrxTi1−xO3 pada x = 0,01; x = 0,02; dan x = 0,03 masing-masing adalah 34 nm, 33 nm, dan 38 nm. Pengukuran RCL meter diperoleh konstanta dielektrik sebesar 331, 522, dan 641. AbstractBarium zirconium titanate (BaZrxTi1−xO3) with mole variations of zirconium (x) dopant at x = 0.01; x = 0.02; and x = 0.03 has been fabricated by solid state reaction method. Sintering temperature was done at temperature 1100• C with holding time for 2h. Sample was characterized with XRD instrument and RLC meter to determine the effects of doping on the crystal structures and dielectric constant of BaZrxTi1−xO3. The result of XRD analysis showed that BaZrxTi1−xO3 has a tetragonal structure with a = b = c. Crystalline size of BaZrxTi1−xO3 at x = 0.01; x = 0.02; and x = 0.03 are 34 nm, 33 nm, and 38 nm. RLC meter measurement obtained the dielectric constant are 331, 522, and 641, respectively.

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“…Nanocrystalline materials with new and improved properties can also be prepared by ball-milling of alloy synthesized through arc-melting [9]. This process takes few hours in comparison to many hours needed for mechanical alloying.…”

Section: Introductionmentioning

confidence: 99%

Investigations on Microstructures of Ball–milled MmNi5 Hydrogen Storage Alloy

Srivastava¹,

Panwar²

2016

Materials Research Bulletin

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Characterization and dielectric properties of barium zirconium titanate prepared by solid state reaction and high energy ball milling processes

Cited by 15 publications

References 15 publications

Investigation on Electrical Properties of Solid Polymer Sheets (HDPE AND LDPE) at Audio Frequency Range

Investigation on Electrical Properties of Solid Polymer Sheets (HDPE AND LDPE) at Audio Frequency Range

Pengaruh Doping Zirkonium (Zr) pada Konstanta Dielektrik dan Struktur Kristal BaZrxTi1−xO3

Investigations on Microstructures of Ball–milled MmNi5 Hydrogen Storage Alloy

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