ductility

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数据源: ai_enrichment
延展性是指材料在受力时能够发生塑性变形而不破裂的性质,常用于描述金属、塑料等材料的物理特性。

用法要点

句型搭配

ductility 通常作为名词使用,常见于描述材料特性的句子中,常与动词如 'have'、'exhibit' 或形容词如 'high'、'low' 搭配。

• The metal has high ductility.
• This material exhibits excellent ductility.

介词用法

在学术或技术语境中,ductility 常与介词 'of' 连用,表示某种材料的延展性,例如 'the ductility of steel'。

• The ductility of copper makes it ideal for wiring.
• We tested the ductility of the alloy.

语域说明

ductility 主要用于科学、工程、材料学等专业领域,在日常生活对话中较少使用,属于正式或技术性词汇。

• In engineering, ductility is a key property.
• The report discusses the material's ductility.

基础例句

This gold necklace shows good ductility, so it doesn't break easily when bent.

这条金项链延展性很好,弯曲时不容易断裂。

Copper wires have high ductility, which is why they're used in electrical cables.

铜线具有高延展性,这就是为什么它们被用于电缆中。

When choosing materials for jewelry, ductility is an important factor to consider.

选择珠宝材料时,延展性是一个需要考虑的重要因素。

高级例句

The research paper analyzes how temperature affects the ductility of aluminum alloys in aerospace applications.

这篇研究论文分析了温度如何影响航空航天应用中铝合金的延展性。

In material science, ductility is measured through tensile tests to determine elongation before fracture.

在材料科学中,延展性通过拉伸测试来测量,以确定断裂前的伸长率。

The engineering report recommends using steel with enhanced ductility for earthquake-resistant building designs.

工程报告建议在地震抗性建筑设计中采用具有增强延展性的钢材。

高频搭配

verb

have ductilityexhibit ductilitytest ductilityimprove ductilityreduce ductility

adjective

high ductilitylow ductilityexcellent ductilitypoor ductilityremarkable ductility

noun

metal ductilitymaterial ductilitysteel ductilitycopper ductilityalloy ductility

adverb

highly ductilemoderately ductileextremely ductile

preposition

ductility ofductility inductility for

phrase

ductility and toughnessductility testductility propertyductility indexductility limit

常见错误

❌ 错误:This plastic has good ductility, so it is very hard.
✓ 正确:This plastic has good ductility, so it can be stretched without breaking.

错误在于混淆了延展性和硬度。延展性指材料可变形而不破裂,与硬度不同。应改为强调拉伸或变形能力。

❌ 错误:The ductility of the metal is high, it means it is very strong.
✓ 正确:The ductility of the metal is high, which means it can undergo significant deformation before fracturing.

错误在于将延展性与强度等同。延展性关注变形能力,强度关注抗破坏能力。应具体说明变形特性。

近义词辨析

malleability

malleability 主要指材料在压力下(如锤击)可塑成薄片而不破裂的性质,侧重于可锻性;而 ductility 更强调在拉力下延伸成细丝的能力,侧重于延性。两者常相关但侧重不同。

Gold has high malleability for making foil, and high ductility for drawing into wires.

flexibility

flexibility 通常描述物体容易弯曲或适应变化的通用性质,可用于材料或抽象概念;ductility 是材料科学术语,特指塑性变形能力,更专业和具体。

Rubber bands show flexibility in daily use, while metals like copper are valued for their ductility in engineering.