智科眼

请选择以下任意方式登录

已有帐号?

验证码登录

微信登录

忘记密码
未收到验证码?
注册

微信注册

智科眼: 双语看懂新科研
材料科学 22
An(一个) international(国际) research(研究) group(小组) led(领导) by() scientists(科学家) from(from) the University(大学) of(of) Bayreuth(拜罗伊特) has(has) produced(制作) a(一种) previously(以前) unknown(未知) material(材料):(:) Rhenium() nitride(氮化物) pernitride(pernitride).(.) Thanks to(由于) combining(结合) properties(特性) that(that) were() previously(之前) considered(认为) incompatible(不兼容),(,) it() looks(看起来) set(set) to(to) become(成为) highly() attractive(吸引力) for(for) technological(技术) applications(应用).(.) Indeed(实际上),(,) it() is() a(一种) super()-()hard() metallic conductor(金属导体) that(that) can(能够) withstand(承受) extremely() high pressures(高压) like(一样) a(a) diamond(钻石).(.) A(一种) process(工艺) now(目前) developed(开发) in(in) Bayreuth(拜罗伊) opens up(开辟) the possibility(可能性) of(of) producing(生产) rhenium() nitride(氮化) pernitride(pernitride) and() other(其他) technologically(技术) interesting(兴趣) materials(材料) in(in) sufficiently(足以) large() quantity(数量) for(for) their() properties(性能) characterisation(表征).(.) The new() findings(发现) are(are) presented() in(in) Nature Communications(Nature Communications).(.)
The possibility(可能性) of(of) finding(发现) a(a) compound(化合物) that(that) was() metallically(金属) conductive(导电),(,) super()-()hard(),(,) and() ultra()-()incompressible(不可压缩) was() long() considered(认为) unlikely(不可能) in(in) science(科学).(.) It(It) was() believed() that(that) these(这些) properties(性质) could(可能) not(不能) occur(发生) simultaneously(同时) in(in) the same(相同) material(材料) and() were(were) therefore(因此) incompatible(不相容).(.) But(但是) this(这种) prejudice(偏见) has(has) been() soundly() refuted(驳斥) by(by) the research(研究工作) work(工作) now(现在) published(公布),(,) which(which) has(has) passed(通过) through(through) two(两个) stages(阶段) of(of) development(发展) in(in) Hamburg(汉堡) and() Bayreuth(拜罗伊特):(:)
Initially(最初),(,) the scientists(科学家们) synthesized(合成了) the rhenium() nitride(氮化) pernitride(pernitride) in(in) high-pressure(高压) experiments(实验) in(in) a(一个) laboratory() at(at) the University(大学) of(of) Bayreuth(拜罗伊),(,) and() subsequently(然后) characterised(表征) it(it) chemically(化学) and() structurally(结构) at(at) the German(德国) Electron Synchrotron(电子同步加速器) (DESY)((DESY)) .(.) Under(Under) a(a) compression pressure(压缩压力) of(of) 40(40) to(to) 90(90) gigapascals(千兆帕斯卡),(,) small amounts(少量) of(of) this(这种) material(材料) were(were) produced(产生) in(in) a(a) diamond anvil(金刚石砧) cell(电池).(.) Re2(N2)(N)2(Re2(N2)(N)2) is() its() chemical formula(化学式).(.) "(")The crystal structure(晶体结构) that() we(我们) discovered(发现) in(in) Hamburg(汉堡)'s('s) synchrotron(同步加速器) X-(X-)ray(射线) facility(设备) PETRA(PETRA) III(III) surprised(惊讶) us(我们) very(非常) much(much):(:) It() contains(含有) both(both) single(单个) nitrogen() atoms(原子) and() the N-N(N-N) nitrogen() dumbbells(哑铃),(,) in(in) which(which) two(两个) nitrogen() atoms(原子) are(are) strongly(强烈) bound(结合) to(to) each other(彼此).(.) This(这种) internal(内部) structure(结构) obviously(显然) creates(产生) a(a) very(非常) high() resistance(抵抗力) to(to) pressure(压力) acting(作用) on(on) the crystals(晶体) from() the outside(外部):(:) Rhenium() nitride(氮化物) pernitride(pernitride) is() ultra()-()incompressible(不可压缩),"(,") says() Dr(博士) .(.) Maxim(箴言) Bykov(Bykov),(,) postdoctoral() researcher(研究员) at(at) the Bavarian(巴伐利亚) Research(研究) Institute() of(of) Experimental Geochemistry(实验地球化学) &(&) Geophysics(地球物理) (BGI)((BGI)) at(at) the University(大学) of(of) Bayreuth(拜罗伊特).(.)
Here(这里) at(at) BGI(BGI) it(it) was(was) subsequently(随后) possible(可以) to(to) produce(生产) the new() material(材料) in(in) a(a) large()-()volume(体积) press(压力) at(at) a(a) significantly(显著) lower() pressure(压力) (33((33) gigapascals(千兆帕斯卡)).().) "(")Applications(应用) of(of) the large()-()volume(容量) press(压机) technology(技术) for(for) materials(材料) synthesis(合成) are(are) of(of) great(重要) importance(重要性) to(to) materials science(材料科学),"(,") emphasizes(强调) Prof(教授) .(.) Dr(Dr) .(.) Tomoo(Tomoo) Katsura(Katsura) of(of) the Bavarian(巴伐利亚) Geo() Institute(研究所).(.) At(At) the heart() of(of) the new() process(工艺) is() a(a) reaction(反应) of(of) rhenium() with(with) ammonium() azide(叠氮化).(.) The rhenium() nitride(氮化物) pernitride(pernitride) synthesized(合成) in(in) this(这种) way(方式) can(可以) be(be) investigated(研究) under(under) ambient(环境) conditions(条件).(.) And(并且) the process(方法) can(可能) be(be) used(用于) for(for) the synthesis(合成) of(of) other(其他) nitrides(氮化物),(,) in particular(特别是) nitrides(氮化物) of(of) transition metals(过渡金属),(,) which(which) could() also() have(have) technologically(技术上) important(重要) properties(性质).(.) This(这项) research(研究) therefore(因此) shows(展示) in(in) exemplary(典范) fashion(方式) just(just) what(what) innovation(创新) can(可以) come() out of(out of) high-pressure(高压) research(研究) in(in) materials science(材料科学).(.) "(")Although(尽管) the exact(确切) scope of application(应用范围) for(for) the new() material(材料) is(is) still(仍然) hard(难以) to(to) grasp(掌握),(,) its() exceptional() combination(组合) of(of) physical(物理) properties(特性) makes(使得) rhenium() nitride(氮化) a(a) material(材料) that(that) can(可以) help(帮助) meet(满足) the technological challenges(技术挑战) of(of) the future(未来),"(,") explains(解释说) Prof(教授) .(.) Dr(博士) .(.) Natalia(Natalia) Dubrovinskaia(Dubrovinskaia) of(of) the Laboratory(实验室) of(of) Crystallography(晶体学) at(at) the University(大学) of(of) Bayreuth(拜罗伊).(.)
"(")What(What) is() important(重要) about(about) our(我们) new() study(研究),(,) however(然而),(,) is() not only(不仅) the results(结果) as(as) such(such),(,) or(or) the technological(技术) applications(应用) that(that) might(可能) one(one) day() spring() up.(up.) What(What) is() particularly(特别) exciting(令人兴奋) is(is) that(that) the development(开发) and() synthesis(综合) of(of) the new() material(材料) contradicts(相矛盾) and() clearly(明显) disproves(反驳) previous(先前) views(观点) that(that) were(were) firmly(牢固) established(确立) in(in) materials science(材料科学).(.) We(我们) have(have) succeeded(成功) in(in) doing() something(事情) that(),(,) according to(根据) earlier(早先) predictions(预测),(,) should(应该) not() have(have) been(been) possible(可能) at(at) all(all).(.) This() should(应该) stimulate(激发) and() encourage(鼓励) further(进一步) theoretical(理论) and() experimental(实验) work(工作) in(in) the field(领域) of(of) high-pressure(高压) material(材料) synthesis(合成),"(,") explains(解释说) Prof(教授) .(.) Dr(博士) .(.) Leonid(Leonid) Dubrovinsky(Dubrovinsky) from(from) the Bavarian(巴伐利亚) Geo(地质) Institute(研究所),(,) who(who) coordinated(协调) the international(国际) research(研究工作) work(工作) together(一起) with(with) Prof(教授) .(.) Dr(Dr) .(.) Natalia(Natalia) Dubrovinskaia(Dubrovinskaia).(.)

新闻订阅

  • 科学
  • 技术
  • 医学

新闻分享