Characterization of glass-infiltrated alumina-based ceramics.
Characterization of glass-infiltrated alumina-based ceramics.
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DOI：
10.1016/j.dental.2008.06.005
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发表时间：
2008-11
期刊：
影响因子：
5
通讯作者：
Griggs, Jason A.
中科院分区：
文献类型：
--
作者：
Della Bona, Alvaro;Mecholsky, John J., Jr.;Barrett, Allyson A.;Griggs, Jason A.
表征类似于In-Ceram系统的玻璃渗透氧化铝基陶瓷的微观结构、组成和重要性能。所用材料为：IA- In-Ceram氧化铝（Vita）; IAE- IA结晶沉积（Vita）; AEM- IA使用真空驱动方法（Vita）; VC-Vitro-Ceram（Angelus）; TC- Turkom-Cera（Turkom-Ceram）; CC- Ceramcap（Foto-Ceram）;和AG-Al glass（EDG）。按照制造商的说明和ISO 6872标准制备陶瓷样品，并通过1μm氧化铝磨料连续抛光。采用扫描电子显微镜（SEM）、能谱仪（EDS）和体视学（VV）进行半定量和定性分析。使用在超声脉冲发生器/接收器中测量的飞行时间数据来确定弹性模量（E）和泊松比（V），并且使用氦比重瓶来确定密度（ρ）。使用维氏压痕来计算硬度（H）。用万能试验机以1 mm/min的十字头速度对25×4× 1.2mm ~ 3的试件进行三点弯曲断裂，计算弯曲强度σ 3 P，并采用方差分析、Tukey（α=0.05）和Weibull（m=模量，σ0=特征强度）进行统计分析。SEM和EDS分析显示，除了CC中的铅基基体和VC中的氧化锆相之外，所有陶瓷的显微结构相似。TC、AG和CC的平均σ 3 P值显著低于其他陶瓷（p 0.05）。AEM显示最大的m（16）。尽管IA、IAE、AEM和VC陶瓷在微观结构和组成上几乎没有差异，但它们具有相似的性能。不同厂家的玻璃渗透氧化铝基陶瓷表现出不同的特点。有必要对新的市售材料进行表征，以了解其性能。
characterize the microstructure, composition, and important properties of glass-infiltrated alumina-based ceramics similar to the In-Ceram system. Materials used were: IA- In-Ceram Alumina (Vita); IAE- IA electrophoretically deposited (Vita); AEM- IA using a vacuum driven method (Vita); VC- Vitro-Ceram (Angelus); TC- Turkom-Cera (Turkom-Ceramic); CC- Ceramcap (Foto-Ceram); and AG- Alglass (EDG). Ceramic specimens were fabricated following manufacturers’ instructions and ISO6872 standard and polished successively through 1μm alumina abrasive. Semi-quantitative and qualitative analyses were performed using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and stereology (Vv). The elastic modulus (E) and Poisson’s ratio (ν) were determined using time-of-flight data measured in an ultrasonic pulser/receiver and the density (ρ) was determined using a helium pycnometer. Vicker’s indentation was used to calculate hardness (H). Bar specimens (25×4×1.2mm3) were loaded in three-point bending to fracture using a universal testing machine with cross-head speed of 1mm/min. Flexural strength (σ3P) was calculated and statistically analyzed using ANOVA, Tukey (α=0.05) and Weibull (m= modulus, σ0= characteristic strength). SEM and EDS analyses revealed similar microstructure for all ceramics, except for a lead-based matrix in CC and a zirconia phase in VC. TC, AG and CC showed significantly lower mean σ3P values than the other ceramics (p 0.05). AEM showed the greatest m (16). Despite few differences in microstructure and composition, the IA, IAE, AEM and VC ceramics have similar properties. The glass-infiltrated alumina-based ceramics from different manufacturers presented distinct characteristics. It is necessary to characterize new commercially available materials to understand their properties.
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影响因子：
4.6
作者：
GIORDANO, RA;PELLETIER, L;POBER, R
通讯作者：
POBER, R
DOI：
10.14219/jada.archive.1967.0264
发表时间：
1967-01-01
影响因子：
3.9
作者：
MCLEAN, JW
通讯作者：
MCLEAN, JW
DOI：
10.1111/j.1151-2916.1996.tb07994.x
发表时间：
1996-07-01
影响因子：
3.9
作者：
Wolf, WD;Vaidya, KJ;Francis, LF
通讯作者：
Francis, LF
影响因子：
4.6
作者：
Haselton, DR;Diaz-Arnold, AM;Hillis, SL
通讯作者：
Hillis, SL
影响因子：
7.6
作者：
Jung, YG;Peterson, IM;Lawn, BR
通讯作者：
Lawn, BR