Department of Ceramic Engineering: Recent submissions

Now showing items 41-60 of 88

Microstructure and Mechanical Behaviour of ABOw Reinforced Aluminium Matrix Composite Synthesized by Powder Metallurgy route

Pandey, N.; Chakraborty, I.; Ram, S.C.; Majhi, M.R. (Institute of Physics Publishing, 2019-11-20)

In present study, the effect of Aluminum borate whiskers (ABOw) content (5, 10 and15 wt.%) on the development of Al-ABOw composite using powder metallurgy route has been investigated. Firstly, Aluminum borate whiskers ...
Role of defects and microstructure on the electrical properties of solution-processed Al-doped ZnO transparent conducting films

Kumar, A.; Ahmad, I. (Springer, 2020-08-01)

A cheaper, non-vacuum-based routes are required for the large-scale implementation of TCOs in solar cells and LEDs. Generally, solution-based processing routes result in lower transparency and greater resistivity. To achieve ...
Effect of octahedral tilting on antiferroelectric phase stabilization in (1-x)NaNbO3-xCdTiO3ceramics

Gyan, D.S.; Sharma, P.; Dwivedi, A. (Institute of Physics Publishing, 2020-08-12)

In the present work, a unique case for the stabilization of the antiferroelectric phase in NaNbO3 has been presented, where the desired results were obtained in spite of it defying the set pattern predicted by researchers ...
Multifunctional Response of Piezoelectric Sodium Potassium Niobate (NKN)-Toughened Hydroxyapatite-Based Biocomposites

Verma, A.S.; Sharma, A.; Kumar, A.; Mukhopadhyay, A.; Kumar, D.; Dubey, A.K. (American Chemical Society, 2020-09-17)

In this study, hydroxyapatite (HA)-sodium potassium niobate (NKN) composites with varying concentrations of NKN (10, 20, and 30 wt %) were optimally developed at 1075 °C for 2 h. Detailed microstructural analyses have been ...
Microstructural, tribological and compression behaviour of Copper matrix reinforced with Graphite-SiC hybrid composites

Jamwal, A.; Seth, P.P.; Kumar, D.; Agrawal, R.; Sadasivuni, K.K.; Gupta, P. (Elsevier Ltd, 2020-09-01)

Metal Matrix Composites (MMCs) are generating a wide and varied range of interest in the recently developed materials because of their high applicability in the industries. Copper matrix composites have rich properties ...
Study the magnetic and dielectric properties of Sn substituted nickel–cobalt ferrite synthesized by auto combustion method

Hossain, S.S.; Praveena, K.; Roy, P.K. (Springer, 2020-09-01)

Nickel–cobalt ferrites with the stoichiometry of Ni0.4Co0.6–xSnxFe2O4 (where, x = 0, 0.02, 0.04, 0.06, 0.08, and 0.10) have been synthesized by the auto combustion method. The X-ray diffraction (XRD) pattern discloses a ...
Phase separation in wurtzite CuIn xGa1−xS2 nanoparticles

Pradeepkumar, M.S.; Pal, S.; Singh, A.; Basu, J.; Ahmad, M.I. (Springer, 2020-09-01)

It has earlier been reported that that the gallium incorporation in wurtzite CuInS2 (CIS) results in structural distortion, non-homogeneous shape, and distribution of particles. However, a detailed study of the effect of ...
Phase evolution and mechanical properties of non-equiatomic Fe–Mn–Ni–Cr–Al–Si–C high entropy steel

Jain, H.; Shadangi, Y.; Shivam, V.; Chakravarty, D.; Mukhopadhyay, N.K.; Kumar, D. (Elsevier Ltd, 2020-09-05)

Non-equiatomic FeMnNiCrAlSi–C high entropy steel was synthesized by mechanical alloying (MA) followed by spark plasma sintering (SPS). The effect of MA with milling time on phase formation and microstructural evolution was ...
Role of additives SnX2 (X = F, Cl) and anti-solvents on the microstructure of PV absorber FASnI3 films

Aftab, A.; Ahmad, M.I. (Elsevier B.V., 2020-09-15)

Controlling the crystallization during processing and restricting the oxidation of Sn2+ by utilizing anti-oxidants and anti-solvents are viable options for improving microstructure and stability of the tin based organic-inorganic ...
Polarization induced dielectric and electrical response of electrovector hydroxyapatite and ferroelectric sodium potassium niobate ceramics

Saxena, A.; Kakimoto, K.-I.; Dubey, A.K. (Institute of Physics Publishing, 2020-09-23)

The ability of hydroxyapatite (HA) to convert readily into an electret under low polarizing fields (1 kV cm-1) makes it as an excellent substitute for electro-active prosthetic implants. In the present study, compacts of ...
Effect of host on the radiative (upconversion emission) as well as non-radiative relaxation (laser induced optical heating) in Tm3+/Yb3+ co-doped phosphors

Dwivedi, A.; Kumar, D.; Rai, S.B.; Rai, A.K. (Elsevier B.V., 2020-10)

Tm3+/Yb3+ co-doped YVO4 (YVO:Tm, Yb); GdVO4 (GVO:Tm, Yb); Y2O3 (YO:Tm, Yb); Gd2O3 (GdO:Tm, Yb) and CaAl2O4 (CAO:Tm, Yb) phosphor samples have been synthesized using high temperature Solid State Reaction method. X-ray ...
Nanocrystalline cerium-doped Y-type barium hexaferrite; a useful catalyst for selective oxidation of styrene

Suthar, M.; Srivastava, A.K.; Joshi, R.K.; Roy, P.K. (Springer, 2020-10-01)

The cerium-doped Y-type barium hexaferrites Ba2−xCexCo2Fe12O22 (x = 0.0, 0.1, 0.2, and 0.3) were synthesized using the sol–gel auto combustion method. The synthesized nanocrystalline hexaferrite powders were characterized; ...
Structure and mechanical behavior ofin situdeveloped Mg2Si phase in magnesium and aluminum alloys - a review

Seth, P.P.; Prakash, O.; Kumar, D. (Royal Society of Chemistry, 2020-10-08)

The demand for lightweight, high specific strength alloys has drastically increased in the last two decades. Magnesium and aluminum alloys are very suitable candidate materials. Research on alloys with an Mg2Si phase started ...
Wide-bandgap lanthanide niobates: Optical properties and applications

Dwivedi, A.; Singh, A.K.; Singh, S.K. (Elsevier Ltd, 2020-11)

Niobate phosphors (ANbO4; A: Y, Gd, La) are fascinating wide-bandgap materials which attracts vast interest and vital applications. These compounds exhibit fergusonite crystal structure and give broad-band self-activated ...
Enhanced multimodal behaviour of Tm3+/Yb3+ co-doped YTaO4 ceramic material through Bi3+ activation and sensitization: Application as a spectral converter

Roy, A.; Dwivedi, A.; Kumar, D.; Mishra, H.; Rai, S.B. (Elsevier Ltd, 2020-11)

The multimodal [Upconversion (UC), Downshifting (DS) and Quantum cutting (QC)] behaviour of Tm3+/Yb3+ co-doped YTaO4 ceramic material is investigated extensively. The samples are prepared by solid-state reaction method at ...
Studies on the Effect of Processing Parameters on Microstructure and Properties of Magnesium Compacts Prepared via Powder Metallurgy

Seth, P.P.; Prakash, O.; Kumar, D. (Springer, 2020-11-01)

The present study involves the investigation on the effect of processing parameters of powder metallurgy on the microstructure and hardness characteristics of the green as well as sintered specimens of magnesium. The ...
Antibacterial and cellular response of piezoelectric Na0.5K0.5NbO3modified 1393 bioactive glass

Verma, A.S.; Kumar, D.; Dubey, A.K. (Elsevier Ltd, 2020-11)

In the present study, the combined effect of addition of varying concentrations (10–30 vol%) of biocompatible piezoelectric Na0.5K0.5NbO3 (NKN) as well as electrostatic and dynamic pulsed electrical treatment on antibacterial ...
Designing environment-friendly chromium-free Spinel-PericlaseZirconia refractories for Ruhrstahl Heraeus degasser

Mandal, S.; Dileep Kumar, C.J.; Kumar, D.; Syed, K.; Van Ende, M.-A.; Jung, I.-H.; Finkeldei, S.C.; Bowman, W.J. (Blackwell Publishing Inc., 2020-12)

Ruhrstahl Heraeus (RH) degassers are globally used to manufacture vacuum-treated steel for automotive and railroad applications. The state-of-the-art environment-friendly chromium-free alternatives for direct-bonded ...
Mechanochemical and in vitro cytocompatibility evaluation of zirconia modified silver substituted1393 bioactive glasses

Ali, A.; Ershad, M.; Hira, S.; Pyare, R.; Singh, S.P. (Sociedad Espanola de Ceramica y Vidrio, 2020)

Zirconia and silver oxide substituted 1393 bioactive glasses (1393Zr and 1393Zr-1Ag) wereprepared by sol-gel technique and sintered at 900-1100°C. ZrO2incorporation into theglass was on the sole purpose of mechanical ...
Ni stabilized rock-salt structured CoO; Co1-xNixO: Tuning of eg electrons to develop a novel OER catalyst

Mondal, R.; Ratnawat, H.; Kumar, S.; Kumar, A.; Singh, P. (Royal Society of Chemistry, 2020-05-07)

The oxygen evolution reaction (OER) is a key half-reaction in hydrogen-oxygen electrolysers that is very important for efficient electrochemical energy generation, storage and fuel production that offers a clean alternative ...

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