Characterization of a polymer-infiltrated ceramic-network material.
Characterization of a polymer-infiltrated ceramic-network material.
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聚合物浸润的陶瓷网络材料的表征。
DOI：
10.1016/j.dental.2014.02.019
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发表时间：
2014-05
期刊：
影响因子：
--
通讯作者：
Zhang Y
中科院分区：
文献类型：
--
作者：
Della Bona A;Corazza PH;Zhang Y
描述一种可用于CAD-CAM系统的聚合物渗透陶瓷网络(PICN)材料(Vita Enamic，Vita ZahnFabrik)的微观结构并确定其某些力学性能。对材料的微观结构进行了定量和定性分析，并测定了材料的断裂韧性(KIC)、密度(ρ)、泊松比(V)和杨氏模量(E)。KIC的测定采用V型缺口试件和短梁韧性法，其中条形试件缺口，三点加载断口。ρ用阿基米德原理计算，v和E用脉冲发生器和示波器相结合的超声波测厚仪测量。微观结构分析表明，陶瓷和聚合物为基础的互穿网络。各项性能的平均值和标准差分别为：KIC=1.0 9±0.0 5 Mpa m 1/2，ρ=2.0 9±0.0 1g/cm 3，v=0.2 3±0.002，E=37.95±0.34 Gpa。PICN材料表现出介于瓷器和树脂基复合材料之间的力学性能，反映了其微观结构成分。
To characterize the microstructure and determine some mechanical properties of a polymer-ingfiltrated ceramic-network (PICN) material (Vita Enamic, Vita Zahnfabrik) available for CAD–CAM systems. Specimens were fabricated to perform quantitative and qualitative analyses of the material’s microstructure and to determine the fracture toughness (KIc), density (ρ), Poisson’s ratio (v) and Young’s modulus (E). KIc was determined using V-notched specimens and the short beam toughness method, where bar-shaped specimens were notched and 3-point loaded to fracture. ρ was calculated using Archimedes principle, and v and E were measured using an ultrasonic thickness gauge with a combination of a pulse generator and an oscilloscope. Microstructural analyses showed a ceramic- and a polymer-based interpenetrating network. Mean and standard deviation values for the properties evaluated were: KIc = 1.09 ± 0.05 MPa m1/2, ρ = 2.09 ± 0.01 g/cm3, v = 0.23 ± 0.002 and E = 37.95 ± 0.34 GPa. The PICN material showed mechanical properties between porcelains and resin-based composites, reflecting its microstructural components.