Results 81 to 90 of about 858,236 (306)

Selective Oxidation of Zirconium in Zr2Cu

Croatica Chemica Acta, 1999
The high-temperature oxidation of Zr2Cu in dry oxygen is characterized by selective oxidation of zirconium. The excess of copper is accumulated in the matrix alloy at the alloy-oxide interface forming the Zr8Cu5 phase. The oxide layer consists of monoclinic ZrO2 and a small amount of CuO. Additionally, tetragonal ZrO2 appears up to 873 K at the surface,
Paljević, Matija, Tudja, Marijan
openaire   +3 more sources

Noise‐Limited Bit Precision in Ferroelectric Synaptic Transistors for High‐Resolution Neuromorphic Computing

Advanced Functional Materials, EarlyView.
Low‐frequency noise spectroscopy defines the resolvable conductance states of synaptic FeFETs by coupling read‐current fluctuation with usable dynamic range. The resulting noise‐limited bit precision establishes a universal, device‐agnostic reliability metric beyond the memory window, enabling quantitative benchmarking and rational design of high ...
Jaehong Park, Yeonseop Shin, Changhyeon Han, Sangwoo Kim, Eunchan Park, Youngchan Cho, Jaehong Min, Hyunjun Ahn, Jaekyoung Park, Cheol‐Woong Yang, Jangsaeng Kim, Daewoong Kwon, Wonjun Shin   +12 more
wiley   +1 more source

Synthesizing and Characterization of Monoclinic and Tetragonal Phases of Zirconium Oxide (Zro2) Nanofibers with the Aid of Electrospinning Technique [PDF]

Journal of Optoelectronical Nanostructures, 2020
Zirconium oxide has found extensive applications in various industries becauseof its excellent properties such as high strength; high-temperature resistance;extraordinary wearing resistance; ionic conductivity; and corrosion resistance.
Yaser Zarea, Saeed Parhoodeh, Leila Shahryari, Ali Karbakhsh   +3 more
doaj  

Light‐Induced Field‐Tunneling Synapses in Solution‐Processed Van Der Waals Heterostructures for Scalable, Retina‐Inspired Optical Sensing

Advanced Functional Materials, EarlyView.
A scalable, solution‐processed WSe2/ZrO2‐x van der Waals heterostructure realizes a light‐induced field‐tunneling synapse (LIFTS) that activates exclusively under bright illumination, emulating the photopic adaptation of the human retina at the device level.
Kijeong Nam, Jihyun Kim, Soobeen Ji, In Soo Kim, Sejin Kim, Eungseon Yeon, Do Kyung Hwang, Iva Plutnarová, Zdeněk Sofer, Sang Min Won, Joohoon Kang   +10 more
wiley   +1 more source

Balancing Hydrophobicity and Hydrophilicity: Dual Filler‐Engineered Proton Exchange Membranes for Durable, High‐Power Fuel Cells

Advanced Functional Materials, EarlyView.
Polarity‐matched Zr–MOFs program Nafion's nanoscale morphology during solution casting. Hydrophilic UiO‐66 preserves hydrated pathways, while hydrophobic UiO‐67 increases the proton hopping sites by densifying ionic clusters. Combining both fillers yields a membrane that delivers 176 mS cm−1 conductivity, reaches 1.46 W cm−2 under 200 kPa, and triples ...
Yonghwi Cho, Yunseong Ji, Minkyu Choi, Junsu Kim, Yejin Kim, Su Jeong Lee, Wooyoung Choi, Choong Hoo Lee, Ju Yeon Kim, Ohchan Kwon, Hanim Kim, Du Yeol Ryu, Ki Chul Kim, Dae Woo Kim   +13 more
wiley   +1 more source

Oxidized zirconium on ceramic

Orthopaedics & Traumatology: Surgery & Research, 2017
Oxidized zirconium ...
Ozden, V. E., Saglam, N., Dikmen, G., Tozun, I. R.   +3 more
openaire   +3 more sources

Unified Phase‐Field Framework for Antiferroelectric, Ferroelectric and Dielectric Phases: Application to HZO Thin Films

Advanced Functional Materials, EarlyView.
HfxZr1−xO2${\rm Hf}_x{\rm Zr}_{1-x}{\rm O}_2$ offers CMOS‐compatible nanoscale ferroelectricity yet suffers from a high Ec${\rm E}_c$ demanding large operating voltages. A unified phase‐field framework spanning AFE/FE/DE phases shows how FE grains soften neighboring AFE grains over λ$\lambda$ ≈$\approx$ 22–37 nm.
P. Pankaj, Sandeep Sugathan, Jiyoung Kim, Si Joon Kim, Pil‐Ryung Cha   +4 more
wiley   +1 more source

Oxidation of Zirconium in Air

Transactions of the Japan Institute of Metals, 1962
The oxidation reaction of zirconium in air was studied in the temperature range 650 to 850 un. Concent 85% C. The reaction was followed up by measurements of weight change, chemical analyses of nitrogen absorbed in the oxidized specimens, and electron microscopic observations of the surface and cross section of specimens. Above 750 un. Concent 85% C, a
Maekawa, Tatsuo, Ishii, Bunpei
openaire   +2 more sources

Oxygen‐Vacancy‐Regulated Crystallization and Ferroelectric Phase Stabilization in Hf0.5Zr0.5O2 Thin Films

Advanced Functional Materials, EarlyView.
Temperature‐resolved in situ grazing‐incidence wide‐angle X‐ray scattering reveals that oxygen vacancies actively regulate crystallization in Hf0.5Zr0.5O2 thin films. By decoupling macroscopic strain from intrinsic phase evolution, a vacancy‐lean environment significantly lowers the activation energy barrier for crystallization.
Hyun Woo Jeong, Jaewook Lee, Junseong Seo, Hyojun Choi, Dong Hee Han, Seungjae Heo, Tae‐Yeol Jeon, Yunseok Kim, Younghwan Lee, Min Hyuk Park   +9 more
wiley   +1 more source

Does the Addition of Seashell or Zirconium Oxide Nanoparticles at Different Concentrations Improving Tensile Bond Strength of Orthodontic Adhesive? In-vitro study. [PDF]

Al-Rafidain Dental Journal
Aims: The study aimed to assess the tensile bond strength of modified-Heliosit orthodontic adhesive with different concentrations of seashell or zirconium oxide nanoparticles.
Alaa Gharis Adnan, Neam Agha
doaj   +1 more source