1) Vickers hardness
Vickers硬度
1.
A Vickers hardness predicting system of advanced ceramic composites based on BP neural network was developed, which can precisely predict the relationship between material composition and the Vickers hardness through self-training with the present data, and can perfectly aid the ceramic materials design.
误差反向传播神经网络(BP网络)具有能够正确逼近非线性映射关系的优点,将其运用到复相结构陶瓷材料Vickers硬度预测当中,克服了陶瓷材料研究中单因素实验法不能正确反映Vickers硬度与添加组分多因素之间复杂非线性关系的弱点,通过硬度预测和试验验证表明,该方法可行有效,为快捷、经济地开发研制新的陶瓷材料提供了新的思路和有效手段。
2.
The effects of Cr_3C_2,(W,Ti)C on the Vickers hardness and the microstructure of ACW composites were investigated.
热压烧结制备了Al2O3/Cr3C2/(W,Ti)C复合陶瓷材料(以下简称ACW复合材料),对其Vickers硬度及组织形貌进行了研究,分析了Cr3C2及(W,Ti)C对Vickers硬度的影响。
3.
The goodness of fit was studied for Vickers hardness of plasma sprayed Cr 3C 2-NiCr coating following normal, lognormal and Weibull distributions, then the effects of indenter load, testing direction and locations on Vickers hardness were investigated.
研究了等离子喷涂Cr3C2 -NiCr涂层的Vickers硬度服从正态分布、对数正态分布和Weibull分布的拟合优度 ,在统计分析的基础上 ,考察了压头载荷和测量位置对涂层Vickers硬度的影响 。
2) Vickers indentation
Vickers压痕
1.
Vickers indentation test indicates that indentation crack system of the composite ceramics belongs to the median crack system, critical value of indentation load which induces the median crack to extend is 30kg.
Vickers压痕试验发现,该复相陶瓷的压痕裂纹系统属于中位裂纹系统,而引发复相陶瓷中位裂纹扩展的压痕压制载荷临界值为30kg;Vickers压痕SEM形貌观察显示,亚共晶成分复相陶瓷具有较大的断裂韧性和较高的塑性形变行为。
2.
Vickers indentation test indicates that critical value of indentation load which induce the median crack to extend is 30Kg.
Vickers压痕试验发现引发该复相陶瓷中位裂纹扩展的压痕压制载荷临界值为30Kg。
3) hardness
[英]['hɑ:dnis] [美]['hɑrdnɪs]
硬度;硬性
4) hardness
[英]['hɑ:dnis] [美]['hɑrdnɪs]
硬性，硬度
5) Microhardness
[,maikrəu'hɑ:dnis]
硬度
1.
Bi-Modal Distribution of Microhardness in Nanostructured AT13-Based Coatings by Plasma Spraying;
等离子喷涂纳米结构AT13基涂层硬度的双态分布
2.
The Experiment Study on Microhardness Property of the PMMA/MMT Nano Composites Synthesized by Suspension Polymerization;
悬浮聚合法制备聚甲基丙烯酸甲酯/蒙脱土纳米复合材料硬度实验研究
3.
Laser heating compact process of FeCrAlW was carried out,and the phases,microstructure,as well as microhardness profile,in the coating were examined by XRD and SEM.
采用激光辐照对电弧喷涂FeCrAlW涂层的组织进行致密化处理,借助扫描电镜和X衍射对涂层的组织和相结构进行了分析,测试了涂层的显微硬度。
6) hardness
[英]['hɑ:dnis] [美]['hɑrdnɪs]
硬度
1.
Effect of tempering process on elasticity and hardness of knitting needles;
回火工艺对织针弹性及硬度的影响
2.
Metastable phase transformations in Ti-4.4Al-3.8Mo alloy and its influence on the hardness;
Ti-4．4Al-3．8Mo合金的亚稳相变及其对硬度的影响
3.
Simultaneous determination of SO_4~(2-)and total hardness in water by counting the drops of capillary burette;
毛细滴管计滴法同时测定水中硫酸根和总硬度
补充资料：Vickers hardness
分子式：
CAS号：
性质：又称维氏硬度。由维克斯硬度测定仪求得的材料硬度值。按规定的静负荷将维氏硬度压头压入试样表面，经规定保荷时间后卸荷。然后测量压痕对角线长度，按公式Hv=1.854P/L2，演算出维氏硬度值，其中P为加荷值，L为对角线长度(mm)。负荷一般有49.033N，294.20N，980.67N等挡可供选择。保荷时间黑色金属为10～15s，有色金属为30s±2s。
CAS号：
性质：又称维氏硬度。由维克斯硬度测定仪求得的材料硬度值。按规定的静负荷将维氏硬度压头压入试样表面，经规定保荷时间后卸荷。然后测量压痕对角线长度，按公式Hv=1.854P/L2，演算出维氏硬度值，其中P为加荷值，L为对角线长度(mm)。负荷一般有49.033N，294.20N，980.67N等挡可供选择。保荷时间黑色金属为10～15s，有色金属为30s±2s。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条