Characterization of mechanical properties and failure of potassium dihydrogen phosphate under mechanical stressing

Yang, Shengyao; Zhang, Liangchi

doi:10.1016/j.ceramint.2021.02.162

Cited by 12 publications

(9 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…35 The detailed expressions and corresponding parameters of this potential function can be found in Refs. [35,36] The large-scale atomic/molecular massively parallel simulator (LAMMPS) 37 was used as a tool in conjunction with the OVITO software for result visualization. 38 A characterization method would then be developed in this investigation.…”

Section: Discussionmentioning

confidence: 99%

“…It was found that the deformation of KDP under a mechanical stress is owing to the deflection of H-bonds as well as the movement of K atoms due to the rotation of PO 4 groups. 36 Because of this, the characterization method to be developed in this study will focus on the H-bonds and the K atoms surrounded by the PO 4 groups. As a result, two major criteria need to be clarified in relation to the vector angle and K-index.…”

Section: Structural Characterization Methodsmentioning

confidence: 99%

“…They have also studied the failure of KDP under uniaxial/biaxial strain with a potential function developed for this specific material. 36 However, the boundary between a phase transformation and a simple symmetry change is unclear and an accurate structural characterization method is unavailable.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Characterization and criteria of phase transformations and lattice slipping in potassium dihydrogen phosphate crystals

Yang

Zhang

2021

J. Am. Ceram. Soc.

Self Cite

View full text Add to dashboard Cite

Potassium dihydrogen phosphate (KDP) is an important nonlinear optical material. Since the 1930s, this material has attracted significant attention because of its excellent physical and optical properties. [1][2][3][4] KDP has been widely used in many technological fields, such as laser frequency conversion, high-speed Q-switching, optical communication, and optical signal processing. [5][6][7][8][9] At the present, one can easily obtain a large aperture KDP with the rapid growth technology. 10,11 To use a KDP component in high-energy laser systems [12][13][14][15] ; however, it is required to minimize the surface and subsurface damages which are mostly introduced in a mechanical surface finishing process. An ideal outcome is that the manufactured KDP component is totally damage free. However, KDP is one of the most difficult-to-handle materials due to its fragility, unstable microstructure, and complicated mechanical behavior. 16,17 A low-quality surface or subsurface can easily reduce the laser-damage threshold (LDT) and the service life of a KDP component. 18,19 How to overcome the difficulties and improve the machinability of KDP has been challenging.There are many issues in relation to the damage-free manufacture of a KDP component, among which the most critical is its complicated deformation mechanisms under external loading. At stressing, a KDP crystal can undergo

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Structural Characterization Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Characterization and criteria of phase transformations and lattice slipping in potassium dihydrogen phosphate crystals

Yang

Zhang

2021

J. Am. Ceram. Soc.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Previously, little MD analysis could be done on KDP because a reliable potential function was unavailable. Recently, Yang et al − reported a comprehensive interaction potential function specifically developed for KDP. This makes a reliable MD analysis of KDP deformation possible.…”

Section: Introductionmentioning

confidence: 99%

“…The aim of this paper is to reveal the anisotropic deformation mechanisms of KDP at the atomic scale using MD simulation with the aid of the potential function of Yang et al − To this end, the deformation of KDP under nanoindentation on the (001) and (100) lattice orientation surfaces will be carried out comprehensively. To facilitate the structural characterization of KDP, a machine learning-based method will be developed.…”

Section: Introductionmentioning

confidence: 99%

Effect of Anisotropy of Potassium Dihydrogen Phosphate Crystals on Its Deformation Mechanisms Subjected to Nanoindentation

Yang

Zhang

2021

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

Potassium dihydrogen phosphate (KDP) is an important nonlinear material due to its excellent physical and optical properties. However, it is also a difficult-to-machine material due to its complex anisotropic microstructure. To better understand the deformation mechanisms under external stresses, this paper aims to carry out systematic nanoindentation simulations using molecular dynamics (MD). To facilitate the structural characterization of KDP, a machine learning-based method was developed. The results showed that the subsurface damage is obviously anisotropic. On the (001) surface, both tetragonal and monoclinic phases appear simultaneously and part of the monoclinic phase transfers to the tetragonal phase. The generated phases close to the surface undergo amorphization and are squeezed out to form pile-ups. On the (100) surface, however, an orthorhombic phase emerges directly from the original structure rather than transforming through the monoclinic phase. No amorphization happens and no pile-ups appear in this case. The first “pop-in” in the load–displacement curve of nanoindentation signified the emergence of phase transformation under the combined hydrostatic and shear stresses. After unloading, the recovery of the deformed KDP is also anisotropic. The maximum recovery takes place when the indentation is on the (100) surface.

show abstract

Introduction of anatomy of the skin and microneedles as a smart carrier for drug delivery

Verma,

Puri,

Sharma

et al. 2024

Design and Applications of Microneedles in Drug Delivery and Therapeutics

View full text Add to dashboard Cite

Characterization of mechanical properties and failure of potassium dihydrogen phosphate under mechanical stressing

Cited by 12 publications

References 61 publications

Characterization and criteria of phase transformations and lattice slipping in potassium dihydrogen phosphate crystals

Characterization and criteria of phase transformations and lattice slipping in potassium dihydrogen phosphate crystals

Effect of Anisotropy of Potassium Dihydrogen Phosphate Crystals on Its Deformation Mechanisms Subjected to Nanoindentation

Introduction of anatomy of the skin and microneedles as a smart carrier for drug delivery

Contact Info

Product

Resources

About