Refractory metal

Japanese: 高融点金属材料 - こうゆうてんきんぞくざいりょう(英語表記)refractory metal
Refractory metal
It often refers to metallic materials with high melting points, particularly tungsten, tantalum, molybdenum, and niobium, and their alloys. If we arrange the elements in order of melting point, we get tungsten (3387°C), rhenium (3180°C), tantalum (2996°C), osmium (2700°C), molybdenum (2610°C), niobium (2468°C), iridium (2447°C), boron (2300°C), ruthenium (2250°C), and hafnium (2150°C). Here, boron is not a metal, but the rest are, and the fact that there are metallic elements with such high melting points is one of the characteristics of metallic elements.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
融点の高い金属材料,とくにタングステン,タンタル,モリブデン,ニオブと,これらの合金をさすことが多い。元素を融点の順に並べてみると,タングステン(3387℃),レニウム(3180℃),タンタル(2996℃),オスミウム(2700℃),モリブデン(2610℃),ニオブ(2468℃),イリジウム(2447℃),ホウ素(2300℃),ルテニウム(2250℃),ハフニウム(2150℃)となる。ここでホウ素は金属ではないが,あとは金属で,このように高融点のものがあるというのは金属元素の一つの特徴である。

出典 株式会社平凡社世界大百科事典 第2版について 情報

<<:  Public forest - Kouyuurin

>>:  Public land policy (English spelling)

Recommend

Peiper, T.

The wave of the New Art Movement arose in the 192...

Handa Plateau - Handa Kogen

Located in the western part of Oita Prefecture, t...

Alliance News Agency - Alliance News Agency

Japan Telegraph Communication Agency was establis...

Fortunella crassifolia (English spelling) Fortunellacrassifolia

… [Yamada Akio]. … *Some of the terminology that ...

Klimt, Gustav

Born: July 14, 1862, Baumgarten, Vienna Died: Febr...

Notre Dame School - Notre Dame School (English spelling)

A term in music history. A school of medieval poly...

Fundoshi celebration - Hekoiwai

In Kyushu, a coming-of-age ceremony is held for bo...

gost' (English spelling) gost

…As mentioned at the beginning, the Latin word ho...

Elemental analysis - elementary analysis

A method to detect the constituent elements of or...

marginal principle

… [Price formation by private companies] The main...

Balloon jellyfish (Hormiphora palmata)

A ctenophore (illustration) of the family Polytmin...

Kamakura Great Buddha

A seated statue of Amida Nyorai at Kotoku-in Templ...

Tsubosaka Temple

This temple is located in Tsubosaka, Takatori-cho...

Nordotis gigantea (English name) Nordotisgigantea

…[Tokuji Chiba]. … *Some of the terminology that ...

Scopimera globosa (rice crab) - Scopimera globosa

This crab (illustration) of the Ocypodidae family ...