Nature's design solutions in dental enamel: Uniting high strength and extreme damage resistance

首页> 外文期刊>Acta biomaterialia >Nature's design solutions in dental enamel: Uniting high strength and extreme damage resistance

【24h】

Nature's design solutions in dental enamel: Uniting high strength and extreme damage resistance

机译：Nature's Dental Enamel设计解决方案：单位高强度和极端损伤阻力

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

The most important demand of today's high-performance materials is to unite high strength with extreme fracture toughness. The combination of withstanding large forces (strength) and resistance to fracture (toughness), especially preventing catastrophic material failure by cracking, is of utmost importance when it comes to structural applications of these materials. However, these two properties are commonly found to be mutually exclusive: strong materials are brittle and tough materials are soft. In dental enamel, nature has combined both properties with outstanding success - despite a limited number of available constituents. Made up of brittle mineral crystals arranged in a sophisticated hierarchical microstructure, enamel exhibits high stiffness and excellent toughness. Different species exhibit a variety of structural adaptations on varying scales in their dental enamel which optimise not only fracture toughness, but also hardness and abrasion behaviour. Nature's materials still outperform their synthetic counterparts due to these complex structure-property relationships that are not yet fully understood. By analysing structure variations and the underlying mechanical mechanisms systematically, design principles which are the key for the development of advanced synthetic materials uniting high strength and toughness can be formulated.

机译：当今高性能材料的最重要需求是通过极端的断裂韧性团结高强度。耐受大力（强度）和对骨折（韧性）的抗性的组合，特别是通过破裂的灾难性的灾难性失效，在这些材料的结构应用方面是至关重要的。然而，通常发现这两种性质是相互排斥的：强材料是脆性，坚韧的材料是柔软的。在牙科搪瓷中，虽然有数量的可用成分，但自然综合了卓越的成功。由脆性矿物晶体布置在复杂的分层微结构中，搪瓷具有高刚度和优异的韧性。不同的物种在其牙科搪瓷中的不同鳞片上表现出各种结构调整，不仅优化破裂韧性，而且优化硬度和耐磨性。由于这些复杂的结构性质关系尚未完全理解，自然材料仍然优于他们的合成对应物。通过系统地分析结构变化和潜在的机械机制，可以配制设计原理，这些原理是开发高强度和韧性的先进合成材料的关键。

著录项

来源
《Acta biomaterialia》 |2020年第2020期|共24页
作者

展开▼
作者单位

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类普通生物学;
关键词
Dental enamel; Microstructure; Hierarchy; Biomechanics; Fracture;

机译：牙齿搪瓷;微观结构;层次结构;生物力学;骨折;

相似文献

外文文献
中文文献
专利

1. Nature's design solutions in dental enamel: Uniting high strength and extreme damage resistance [J] . Acta biomaterialia . 2020,第期

机译：Nature's Dental Enamel设计解决方案：单位高强度和极端损伤阻力
2. Study on acid resistance of human dental enamel and dentin irradiated by semiconductor laser with Ag(NH3)2F solution. [J] . Yu DG, Kimura Y, Fujita A, Journal of clinical laser medicine and surgery . 2001,第3期

机译：Ag（NH3）2F溶液半导体激光辐照对人牙釉质和牙本质的耐酸性研究
3. A NOVEL METHOD FOR STUDYING THE CORROSION RESISTANCE AND MICROSTRUCTURE OF ENAMEL COATING MODIFIED ON HIGH-STRENGTH STEEL IN 3.5 wt.% NaCl SOLUTION [J] . Li Yulin, Wang Junjie, Zhong Qingdong Mathematical research letters: MRL . 2020,第2期

机译：一种新的3.5重量％钢改性搪瓷涂层耐腐蚀性和微观结构。％NaCl溶液
4. Infrared Laser Ablation of Dental Enamel: Influence of an Applied Water Layer on Ablation Rate and Peripheral Damage [C] . Nahal Ashouri, Ramesh Shori, Jason M. Cheung, Conference on Lasers in Dentistry Ⅶ Jan 21-22, 2001, San Jose, USA . 2001

机译：牙釉质的红外激光烧蚀：施加的水层对烧蚀率和周围损伤的影响
5. Bond Strength of Etch-and-Rinse and Self-etch Adhesive Systems to Enamel and Dentin Irradiated with a Novel CO2 9.3 µm Short-pulsed Laser for Dental Restorative Procedures [D] . Bartolome, Nicole Ong 2017

机译：新型9.3 µm CO2短脉冲激光辐照牙釉质和牙本质对牙釉质和牙本质的腐蚀和冲洗和自蚀胶黏剂系统的粘结强度
6. In vitro bond strengths post thermal and fatigue load cycling of sapphire brackets bonded with self-etch primer and evaluation of enamel damage [O] . Ali I. Ibrahim, Noor R. Al-Hasani, Van P. Thompson, 2020

机译：自蚀刻底漆粘结的蓝宝石托架在热和疲劳载荷循环后的体外粘结强度以及牙釉质损伤的评估
7. Mechanical properties of various concrete after high temperature exposure Mechanical property of various types of concrete after high temperature exposure is investigated. Considering compressive strength requirement for a vertical element in high rise building, concrete specimens with various design strengths of 35, 80, 100, and 150 MPa were tested. Particularly, the influence of incorporated steel fiber on fire resistance is of interest in this study. Experimental results show that the fire resistance depends on the design strength and steel fiber content. Normal strength concrete (NSC) of a design strength of 35 MPa or high performance concrete (HPC) of 80-100 MPa does not spall when exposed to 100-400 °C of temperature. However, an explosive spalling occurs at 300 °C when the HPCs contain 1 vol. of steel fiber. Ultra-high performance concrete (UHPC) of a design strength of 150 MPa and 1.5 vol. of steel fiber also shows dramatic spalling at 300 °C. The experimental results found in this study can contribute to a better understanding of the behaviors of HPC and UHPC under fire and the role of steel fiber on the fire resistance. [O] . 2017

机译：研究了高温暴露后各种混凝土高温曝光机械性能各种混凝土的机械性能。考虑到高层建筑中垂直元件的抗压强度要求，测试了35,80,100和150MPa各种设计强度的混凝土试样。特别是，在这项研究中，掺入钢纤维对耐火性的影响。实验结果表明，耐火性取决于设计强度和钢纤维含量。在暴露于100-400°C的温度时，80-100MPa的设计强度为35MPa或高性能混凝土（HPC）的正常强度混凝土（NSC）不会击落。然而，当HPC含有1体积的钢纤维的百分比时，爆炸性剥落发生在300℃。超高性能混凝土（UHPC）的设计强度为150 MPa和1.5 Vol。钢纤维的百分比也显示出300℃的剧烈剥落。本研究中发现的实验结果可以有助于更好地了解在火灾中的HPC和UHPC的行为以及钢纤维对耐火性的作用。

Nature's design solutions in dental enamel: Uniting high strength and extreme damage resistance

摘要

著录项

相似文献

相关主题

期刊订阅