Growth and investigation of novel nonlinear optical single crystal of urea potassium dichromate by solution growth technique for photonic application

Chithambaram, V.; Rajesh, Thankam Sreekumar; Palani, Geetha; Ilango, E.; Deepanraj, B.; Santhanakrishnan, Soundarapandian

doi:10.1007/s12596-020-00605-7

Cited by 41 publications

(8 citation statements)

References 13 publications

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“…The compound is not likely to be KH(C 2 O 4 )Á(C 2 H 2 O 4 )Á2H 2 O, which is centrosymmetric (Mahendra & Udayashankar, 2020). In one probable case of faulty laboratory practice, the authors were not aware that the SHG signal they observed on their presumed potassium dichromate-urea adduct (Chithambaram et al, 2020) would have arisen from potassium dichromate itself (Srinivasan et al, 2021). In another, the SHG signal from alanine adipate (Akilandeswari & Jothi, 2021) should not be observed as the material is merely adipic acid, a centrosymmetric material (Petrosyan & Srinivasan, 2021).…”

Section: Discussionmentioning

confidence: 98%

SHG in a centrosymmetric crystal – can it be possible?

Tou¹,

Ng²

2021

Acta Crystallogr C

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The present report lists selected publications on centrosymmetric compounds that manifest second harmonic generation responses in a laser, along with a few publications that dispute the laser outcomes. Two studies provide a plausible explanation for this apparent contradiction between second-order nonlinear susceptibility and inversion symmetry: the crystals are noncentrosymmetric and are twinned by inversion. If crystal structures of SHG-active compounds are presented in centrosymmetric settings, the authors of the publications may consider stipulating that the true space group is likely to be one of the noncentrosymmetric sub-space groups.

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Section: Discussionmentioning

confidence: 98%

SHG in a centrosymmetric crystal – can it be possible?

Tou¹,

Ng²

2021

Acta Crystallogr C

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“…The inclusion of hard nano-ZrO 2 particles causes the ductility to be reduced. These ZrO 2 particles outnumber the base Al7010 particles, resulting in a reduction in elongation [17]. These particles function as a limit on the Al7010 alloy matrix's deformation.…”

Section: Ultimate Tensilementioning

confidence: 99%

“…The behaviour of a zirconium dioxide particle reinforced aluminium alloy metal matrix composite was investigated in this study employing stir casting techniques. Friction stir casting, powder metallurgy, mechanical alloying, stir casting, and squeeze casting are some of the procedures used to make metal matrix nanocomposites (MMNCs) [17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Influence of Future Material Nano‐ZrO₂ and Graphene on the Mechanical Properties of Al Composites

Umar

Muraliraja

Shaisundaram

et al. 2022

Journal of Nanomaterials

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Recent developments in mechanical applications have led to the development of metal matrix composites, which represent the future of composite structures. Al7010 aluminium alloy matrix with nano-ZrO2 and graphene particle reinforced composite is created in this experiment. By adopting the stir casting procedure in two different casting, 2 percent reinforcement of zirconium dioxide and 1 percent of graphene is included in the composite materials. The composite’s metallurgical and mechanical characteristics are studied. The SEM image demonstrates uniform dispersion of the particles in the alloy matrix. The manufactured material’s ability to gather particulate matter is clearly found in SEM and EDS. The addition of zirconia particles works together to prevent the alloy matrix from dislocating, which increases the base material’s hardness as well as its tensile resistance. Similar results are also found in graphene-casting material. Results from tensile tests reveal that adding nano-zirconium dioxide particle (ZrO2) and graphene boosts the material’s tensile and hardness strength. In terms of the ultimate tensile strength (UTS), the Al7010/2% ZrO2 composite had a 6% increase and Al7010/1% graphene had a 5.5% increase above the Al7010 alloy. Compared to Al7010 alloy, the microhardness of Al7010/ZrO2 is 17.64% greater and Al7010/1% graphene is 14% greater.

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“…However, poor mechanical and wear properties limit its applications [3]. Therefore, ceramic particles are usually introduced in copper and their alloys to improve their strength and wear resistance [4][5][6]. Although ceramic particle reinforcement causes enhancement in mechanical and wear properties but by virtue of the occupation of hard (non-deformable) ceramic particles, metal matrix composites (MMCs) face problems in terms of loss in ductility and toughness [7].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, FSP, a variant of FSW, is in trend for manufacturing of MMCs due to its solid-state nature [13]. For example, S. Sarvankumar et al [5] used FSP for the synthesis of Cu/ AlN surface composite and investigated the effect of volume fraction on microhardness and wear behaviour. The results showed that increased volume fraction resulted in improved hardness and wear properties of the fabricated composite.…”

Section: Introductionmentioning

confidence: 99%

Friction and Wear Response of Friction Stir Processed Cu/ZrO₂ Surface Nano‐Composite

Kumar¹,

Prasad

Kumar

et al. 2022

Journal of Nanomaterials

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The present work aims to develop Cu/ZrO2 surface composite by friction stir processing and analyse the effect of zirconia incorporation on microstructure, mechanical, and tribological behaviour of developed copper matrix composite. Microstructural observations indicated that grains were equiaxed and fine in the stir zone of the composite and zirconia particles were uniformly dispersed in the copper matrix with excellent bonding. The test results for mechanical and wear behaviour showed increment in hardness and wear resistance as compared to copper which may be because of the effect of zirconia presence and grain refinement. The fabricated composite displayed higher value of average friction coefficient in comparison to as received copper. The worn surface observed by SEM revealed the predominance of adhesion and delamination wear mechanism in base copper.

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Growth and investigation of novel nonlinear optical single crystal of urea potassium dichromate by solution growth technique for photonic application

Cited by 41 publications

References 13 publications

SHG in a centrosymmetric crystal – can it be possible?

SHG in a centrosymmetric crystal – can it be possible?

Influence of Future Material Nano‐ZrO₂ and Graphene on the Mechanical Properties of Al Composites

Friction and Wear Response of Friction Stir Processed Cu/ZrO₂ Surface Nano‐Composite

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Growth and investigation of novel nonlinear optical single crystal of urea potassium dichromate by solution growth technique for photonic application

Cited by 41 publications

References 13 publications

SHG in a centrosymmetric crystal – can it be possible?

SHG in a centrosymmetric crystal – can it be possible?

Influence of Future Material Nano‐ZrO2 and Graphene on the Mechanical Properties of Al Composites

Friction and Wear Response of Friction Stir Processed Cu/ZrO2 Surface Nano‐Composite

Contact Info

Product

Resources

About

Influence of Future Material Nano‐ZrO₂ and Graphene on the Mechanical Properties of Al Composites

Friction and Wear Response of Friction Stir Processed Cu/ZrO₂ Surface Nano‐Composite