Effects of deformation rate on properties of Nd,Y-codoped CaF 2 transparent ceramics

Jiang, Yue; Jiang, Benxue; Jiang, Nan; Zhang, Pande; Chen, Shuilin; Xu, Hao; Zhang, Ge; Fan, Jintai; Su, Liangbi; Li, Jiang; Zhang, Long

doi:10.1016/j.jeurceramsoc.2017.11.016

Cited by 25 publications

(16 citation statements)

References 37 publications

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“…When the deformation rate reaches to 51%, there are four diffraction peaks shown in the XRD pattern corresponding to the (111), (220), (311), and (331) plane, which can be assigned to the SrF 2 perfectly without any impurities. The change of the number of diffraction peak can be explained as follows: SrF 2 possesses five independent slip systems, each independent slip system has its minimum slip driving forces [23]. With the temperature and pressure increased, the slip system that possessed minimum energy was first activated, then the diffraction peak occurred.…”

Section: Methodsmentioning

confidence: 99%

Study in Optical and Mechanical Properties of Nd3+, Y3+: SrF2 Transparent Ceramics Prepared by Hot-Pressing and Hot-Forming Techniques

et al. 2019

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Nd3+, Y3+: SrF2 transparent ceramics were successfully synthesized by two methods: hot-forming and hot-pressing techniques. The mechanical properties and optical properties of the hot-formed Nd3+, Y3+: SrF2 transparent ceramics were much better than that of single crystal. On the other hand, the transmittance of the hot-formed transparent ceramics with different deformation rate reached up to 90% at 1054 nm, which is superior to the hot-pressed ceramics. Furthermore, the fracture toughness of hot-formed Nd3+, Y3+: SrF2 transparent ceramics with the deformation rate of 51% reached up to 0.70 MPa m1/2, which is nearly 1.5 times higher than that of as-grown single crystal. The full width at half maximum (FWHM) of the hot-formed ceramic is larger than that of the single crystal at 1053 nm under continuous-wave (CW) laser operation. The thermal conductivity of Nd3+, Y3+: SrF2 single crystal and hot-formed ceramics were also discussed.

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Section: Methodsmentioning

confidence: 99%

Study in Optical and Mechanical Properties of Nd3+, Y3+: SrF2 Transparent Ceramics Prepared by Hot-Pressing and Hot-Forming Techniques

et al. 2019

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“…According to the abovementioned reasons, a single crystal ceramization method was developed through the combination of hot pressing and hot forming process. We have verified the feasibility of this method, and successfully obtained Nd 3+ , Y 3+ ‐ codoped CaF 2 19‐20 and Nd 3+ , Gd 3+ ‐ codoped SrF 2 21 ceramics. The ceramic samples prepared by abovementioned method keep excellent transparency and low scattering loss (free‐pores) of hot‐formed CaF 2 ceramics, which is better than that of hot‐pressed CaF 2 ceramics.…”

Section: Introductionmentioning

confidence: 53%

“…This phenomenon can be explained by CaF 2 crystal slip. The CaF 2 single crystal belongs to space group: Fm‐3m, which exists in five different slip systems 20 . Therefore, there are five diffraction peaks of CaF 2 ceramics, as shown in the Figure 1B.…”

Section: Resultsmentioning

confidence: 99%

Er³⁺‐doped CaF₂ polycrystalline ceramic with perfect transparency for mid‐infrared laser

Jiang

et al. 2020

J Am Ceram Soc

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Er3+‐doped CaF2 transparent ceramics are promising mid‐infrared gain materials because of their utra‐low phonon energy as well as excellent physical, chemical, and optical properties. However, existing hot‐pressed and hot‐formed CaF2 ceramics are very difficult to be used in practical applications due to residual pores and weak polycrystallization, respectively. Here, we developed the high quality Er3+‐doped CaF2 transparent polycrystalline ceramic by single crystal ceramization. The sample exhibits obvious polycrystalline structure, good mechanical properties, perfectly transmittance, and excellent mid‐infrared performance, which provides significant and wide‐ranging opportunities for advanced mid‐infrared gain materials.

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“…При этом известно, что структурированию объема оптических неорганических и органических материалов посвящено довольно большое число научнотехнических публикаций, однако вопрос о влиянии процесса структурирования поверхности модельных матриц на основные физико-химические характеристики изучен недостаточно досконально. Более того, изучение процесса структурирования керамических материалов [1][2][3][4][5] [6], а также обусловливался наличием ранее проведенных аналитических расчетов [7], показавших прямую возможность ковалентной привязки УНТ к поверхности фторида магния, что позволяет эффективно применять данные материалы, в частности, для защитных окон ламп УФ-диапазона, используемых в медицинских клиниках. Выбор для исследования структуры ZnS определялся широким использованием данного материала в системах солнечной энергетики, полупроводниковой техники, а также в лазерных схемах среднего ИК-диапазона; применение лазерного ориентированного осаждения позволяет увеличить пропускание, прочность и угол смачивания, что расширяет области использования таких матриц.…”

Section: поступило в редакцию 11 апреля 2019 г в окончательной редакunclassified

Свойства Оптических Керамик КО1 И КО2 При Модификации Их Поверхности Углеродными Нанотрубками

Каманина¹,

Лихоманова²,

Загидуллина³

2019

Письма В Журнал Технической Физики

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The research results of the modification of the properties of the optical inorganic materials, such as: optical ceramic КО1(MgF2) and КО2(ZnS) have been presented. Essential change of the basic parameters of these inorganic matrixes, which surface has been modified with the carbon nanotubes under the application of the laser oriented deposition technique, has been established. The main features of the carbon nanotubes have been taken into account, which have been connected with their branched surface, large hardness of the C-C bonds and small value of the refractive index. Analytical and quantum-chemical calculations as well as the experimental results have been presented, which have been connected with the change of the spectral, mechanical and wetting characteristics of the chosen inorganic matrixes.

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Effects of deformation rate on properties of Nd,Y-codoped CaF 2 transparent ceramics

Cited by 25 publications

References 37 publications

Study in Optical and Mechanical Properties of Nd3+, Y3+: SrF2 Transparent Ceramics Prepared by Hot-Pressing and Hot-Forming Techniques

Study in Optical and Mechanical Properties of Nd3+, Y3+: SrF2 Transparent Ceramics Prepared by Hot-Pressing and Hot-Forming Techniques

Er³⁺‐doped CaF₂ polycrystalline ceramic with perfect transparency for mid‐infrared laser

Свойства Оптических Керамик КО1 И КО2 При Модификации Их Поверхности Углеродными Нанотрубками

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Effects of deformation rate on properties of Nd,Y-codoped CaF 2 transparent ceramics

Cited by 25 publications

References 37 publications

Study in Optical and Mechanical Properties of Nd3+, Y3+: SrF2 Transparent Ceramics Prepared by Hot-Pressing and Hot-Forming Techniques

Study in Optical and Mechanical Properties of Nd3+, Y3+: SrF2 Transparent Ceramics Prepared by Hot-Pressing and Hot-Forming Techniques

Er3+‐doped CaF2 polycrystalline ceramic with perfect transparency for mid‐infrared laser

Свойства Оптических Керамик КО1 И КО2 При Модификации Их Поверхности Углеродными Нанотрубками

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Er³⁺‐doped CaF₂ polycrystalline ceramic with perfect transparency for mid‐infrared laser