scholarly journals FTIR spectral analysis of glycine doped ammonium dihydrogen phosphate (ADP) crystal

2021 ◽  
Vol 1913 (1) ◽  
pp. 012028
Author(s):  
A Z Khan ◽  
Z S Khan ◽  
S Patle ◽  
K G Rewatkar ◽  
S Zodape
Keyword(s):  
Spectral Analysis ◽  
Dihydrogen Phosphate ◽  
Ammonium Dihydrogen Phosphate ◽  
Adp Crystal ◽  
Ftir Spectral Analysis

Phase stability analysis of shocked ammonium dihydrogen phosphate by X-ray and Raman scattering studies

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Sivakumar Aswathappa ◽  
Arumugam Saranraj ◽  
Sahaya Jude Dhas Sathiyadhas ◽  
Kondaviti Showrilu ◽  
Martin Britto Dhas Sathiyadhas Amalapushpa
Keyword(s):  
Shock Wave ◽  
Degree Of Crystallinity ◽  
Dihydrogen Phosphate ◽  
Ammonium Dihydrogen Phosphate ◽  
Electron Microscopic ◽  
X Ray ◽  
Present Context ◽  
Adp Crystal ◽  
Wave Induced ◽  
The Impact

AbstractImpact of shock waves on non-linear optical materials bring about a lot of unknown behaviors of materials and such kinds of shock wave recovery experiments are highly required for the better understanding of material-property relationship. In the present context, we have performed experiments on the impact of structural properties of ammonium dihydrogen phosphate (ADP) samples under shock wave loaded conditions and the results of the test samples have been evaluated by X-ray diffraction (XRD), Raman spectroscopy, diffused reflectance spectroscopy (DRS) and field emission scanning electron microscopic (FESEM) technique. Interestingly, prismatic face of ADP shows loss of degree of crystallinity whereas pyramidal face shows enhancement of crystalline nature with respect to number of shock pulses due to shock wave induced dynamic re-crystallization. Hence, the present problem is worthy enough to unearth and understand the anisotropic nature of the ADP crystal and their structural modifications at shock wave loaded conditions.

scholarly journals Influence of organic dopants (L-alanine and L-arginine) on structural, spectroscopic and thermal properties of ammonium dihydrogen phosphate crystal

2017 ◽  
Vol 35 (3) ◽  
pp. 632-638 ◽  
Author(s):  
K.D. Parikh ◽  
J.H. Joshi ◽  
M.J. Joshi
Keyword(s):  
Amino Acids ◽  
Second Harmonic ◽  
Dihydrogen Phosphate ◽  
Ammonium Dihydrogen Phosphate ◽  
Second Harmonic Generation Efficiency ◽  
Kinetic And Thermodynamic Parameters ◽  
Adp Crystal ◽  
Ft Ir ◽  
Organic Dopants ◽  
Pump Lasers

AbstractAmmonium dihydrogen phosphate is a popular nonlinear optical crystal used for second harmonic generation efficiency improvement in pump lasers. Due to molecular chirality and zwitterionic structure, amino acids are used to enhance various properties of ADP crystal. The single crystals of ammonium dihydrogen phosphate (ADP) added with different concentrations (0.3 wt.%, 0.4 wt.% and 0.5 wt.%) of amino acids (L-alanine and L-arginine) impurities were grown using slow evaporation solution growth (SESG) technique at room temperature. To study the structural properties, powder XRD study was carried out which revealed that all the grown crystals have tetragonal structural symmetry. The presence of various functional groups was confirmed using FT-IR spectroscopy. The thermal spectra (TGA/DTA/DSC) were recorded for all grown samples to determine their decomposition. Also kinetic and thermodynamic parameters were determined from the thermal study.

Effect of Dicarboxylic Acid Dopant on ADP Crystal by Slow Evaporation Method

2020 ◽  
Vol 22 (4) ◽  
pp. 1261-1272
Author(s):  
J. Aarthi ◽  
S. Gowri ◽  
M. Sornambal
Keyword(s):  
Spectral Analysis ◽  
Dicarboxylic Acid ◽  
Grown Crystal ◽  
Vibrational Modes ◽  
Slow Evaporation ◽  
X Ray Diffraction ◽  
Adp Crystal ◽  
Ftir Spectral Analysis ◽  
Evaporation Technique

AbstractInfluence of dicarboxylic acid dopant on growth and characterization of ADP crystal were grown by slow evaporation technique at room temperature. The transparent (ADFU) crystals are yield after a period of 15 days. The X-ray diffraction study reveals that ADFU crystal belongs to tetragonal system. The vibrational modes of grown crystal were confirmed by FTIR spectral analysis. In UV-Vis spectral analysis the absorbance is low than pure ADP which reveals that NLO active of grown crystal is more. The emission spectrum of grown crystal was studied using fluorescence spectral analysis. The nonlinear optical property was analyzed using Kurtz-Perry technique, the SHG efficiency of ADFU crystal has much higher than that of pure ADP. The mechanical behavior includes binding nature and strength for the grown crystal was investigated by Vickers microhardness test.

Effect of shock waves on structural and dielectric properties of ammonium dihydrogen phosphate crystal

2019 ◽  
Vol 234 (9) ◽  
pp. 557-567 ◽  
Author(s):  
Sivakumar Aswathappa ◽  
Sahaya Jude Dhas Sathiyadhas ◽  
Balachandar Settu ◽  
Martin Britto Dhas Sathiyadhas Amalapushpam
Keyword(s):  
Shock Wave ◽  
Grain Size ◽  
Dielectric Properties ◽  
Shock Waves ◽  
Dihydrogen Phosphate ◽  
Ammonium Dihydrogen Phosphate ◽  
X Ray Diffraction ◽  
Research Article ◽  
Adp Crystal ◽  
Post Shock

Abstract In this research article, the authors pay attention to investigate the effect of structural and dielectric properties of ammonium dihydrogen phosphate (ADP) crystal under pre and post shock loaded conditions. A shock wave of Mach number 1.9 was utilized for the present investigation which was generated by a table-top pressure driven shock tube. The crystalline nature and grain size variations were estimated by powder X-ray diffraction technique. The grain size of post shock wave loaded ADP crystal is found to be larger than that of the pre shock wave loaded ADP crystal. The dielectric properties of the pre and post shock loaded crystals were analyzed by impedance analyzer as a function of frequency (1 kHz–1 MHz) at ambient temperature. The dielectric constant is observed to be varying from 346 to 362 at the frequency of 400 kHz for pre and post shock wave loaded ADP crystals, respectively. The obtained results suggest that shock waves can be an alternate tool to tailor the physical properties of materials without creating any change in the original crystal system and surface morphology.

The Effect of Phosphatic Composite on Magnesium Phosphate Cement Performance

2014 ◽  
Vol 809-810 ◽  
pp. 477-484
Author(s):  
Zhao Qing Qi ◽  
Hong Tao Wang ◽  
Jun Liang Dang ◽  
Shi Hao Zhang ◽  
Jian Hua Ding
Keyword(s):  
Setting Time ◽  
Potassium Dihydrogen Phosphate ◽  
Magnesium Phosphate ◽  
Dihydrogen Phosphate ◽  
Ammonium Dihydrogen Phosphate ◽  
Hydrogen Phosphate ◽  
Sodium Dihydrogen Phosphate ◽  
Disodium Hydrogen Phosphate ◽  
Potassium Dihydrogen ◽  
Sodium Dihydrogen

The capacity of 10%, 30%, and 50% ammonium dihydrogen phosphate were replaced with an equal amount of three phosphate (potassium dihydrogen phosphate, sodium dihydrogen phosphate, disodium hydrogen phosphate) respectively. Magnesium phosphate cement was made by phosphate of replaced, which strength, setting time, fluidity, hydration temperature, and the hydration products was researched. The results show that: MPC was made that replaced with the equal amount of three kind of phosphate, which has good mechanical properties. Setting time and fluidity change along with the replacment. Three kind of phosphate replace ammonium dihydrogen phosphate, which change the hydration process of MPC. When ammonium dihydrogen phosphate was replaced by an equal amount of disodium hydrogen phosphate, the temperature of hydration is only 69.4 °C. XRD showed that the diffraction peaks of composite’s magnesium phosphate cement increases.

Growth and Characterization of Ammonium Dihydrogen Phosphate (ADP) Doped with H3BO3 Crystals Grown by Slow Evaporation Method

2016 ◽  
Vol 675-676 ◽  
pp. 573-576 ◽  
Author(s):  
Pratya Thongpanit ◽  
Weerapong Chewpraditkul ◽  
Nakarin Pattanaboonmee
Keyword(s):  
Boric Acid ◽  
Temperature Stability ◽  
Hardness Measurement ◽  
Dihydrogen Phosphate ◽  
Ammonium Dihydrogen Phosphate ◽  
Slow Evaporation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Evaporation Method

Ammonium dihydrogen phosphate (ADP) crystals is very interesting due to its nonlinear optical property. This study investigated on improving of material for academic use by adding boric acid to modify ADP crystals. Slow evaporation method in aqueous solutions of pure ADP and ADP doped with three concentrations of H3BO3 as 0.1, 1.0, 5.0 %wt were studied. The grown crystals were confirmed tetragonal structure by powder X-ray diffraction studies. The FTIR spectrum analysis presented various functional groups of boron in three conditions of doped ADP. TGA study was comfirned the temperature stability at 220 °C for both pure and doped ADP crytals. The machanical stress was analyzed by Vicker’s hardness measurement. The results of this analysis showed boric acid doped 1.0 %wt had superior machanical stress from 10 to 75 grams. ADP doped with boric acid at 1.0 %wt was accepted in all test properties.

Sign in / Sign up

Export Citation Format

Share Document