Owing to excellent machinability and biocompatibility,mica glass-ceramics materials have good potential applications in the fields of orthopaedics and teeth prosthetics,as well as be of great interests to materials scientists and medical scientists.
文内介绍了云母基玻璃陶瓷的分类、结构、可切削性及制备方法,并对其制备方法的优缺点进行了评价;综述了国内外对云母基玻璃陶瓷改性的研究进展,包括Ba云母和Ca云母增强,ZrO2增韧,热挤压和热压增强以及生物活性的改善。
Grey theory and uniform design were applied to study the relationship between the machinability and compositions of SiO_2-Al_2O_3-CaO-MgO-K_2O-F~-glass-ceramics.
将灰色理论与均匀设计应用于研究SiO2-Al2O3-CaO-MgO-K2O-F-体系微晶玻璃中氧化物组分与可切削性能的关系。
The relative machinability of the titantium alloy is analyzed.
分析了钛合金的相对可切削性 ,阐述了钛合金切削加工条件 ;以钛合金车加工和孔加工为例介绍了钛合金加工刀具的设
Biological Characteristics of the Machinable Bioligic Glass-Ceramic;
可切削生物微晶玻璃的生物学评价
The composition of machinable glass ceramics in the SiO2 Al2O3 MgO K2O B2O3 Li2O ZnO F system has been studied in order to decrease their melting temperature and to increase their strength at the same time.
从而减小了晶体间的平均自由程,提高了可切削玻璃陶瓷的强度。
This paper deals with commonly heat treatment crystallization methods and mechanism of glass ceramics,and discusses particularly heat treatment of machinable glass ceramics,including general two step heat treatment process,improved single step heat treatment process,and its microstructure and properties.
论述了微晶玻璃常用的热处理晶化方法及机理 ,并以可切削微晶玻璃为例 ,对其常用两段晶化法与改进的一段晶化法工艺及微观结构和性能进行了讨
In this work, a kind of machinable bioactive glass_ceramics, containing fluoroapatite and fluorophlogopite crystals, was prepared by adding F -, Mg 2+ to CaO-P 2O 5-SiO 2 glasses, and by controlling phase_separation in the heat_treatment processing.
用差热分析 (DTA) ,扫描电镜 (SEM) ,X射线衍射 (XRD)等对该微晶玻璃的显微结构及主晶相的种类进行了研究 ,并对材料的可切削性及强度进行了测定 。
Machinable Glass-Ceramics Made from Industrial Slags;
用粉煤灰、钢渣和煤矸石三种工业废渣为主要原料制备了具有可切削性能的微晶玻璃。
Based on the wear curves of tools, a longitudinal turning test method is established to judge the cutting capacity of tools and the cutability of metal materials.
在刀具磨损曲线的基础上，用纵车简速试验法来评定刀具的切削性能和金属材料的可切削性。
Pancreatic Carcinoma:Diagnosis and Assessment of Resectability by using CT;
CT对胰腺癌的诊断及手术可切除性评估
Correlation Research of Pancreatic Cancer CT Feature and Preoperative Resectability;
胰腺癌的CT影像学特征与其术前可切除性的相关性研究
Objective To study the value of CT and MRI conducted on resectability of uncinate process carcinoma of pancreas.
目的探讨CT及MRI在胰腺钩突癌可切除性中的术前评估价值。