Definitions for columbium
kəˈlʌm bi əmcolumbi·um

Princeton's WordNetRate this definition:0.0 / 0 votes

1. columbiumnoun

   a former name for niobium

WiktionaryRate this definition:0.0 / 0 votes

1. columbiumnoun

   The former name of niobium

WikipediaRate this definition:0.0 / 0 votes

1. columbium

   Niobium is a chemical element with chemical symbol Nb (formerly columbium, Cb) and atomic number 41. It is a light grey, crystalline, and ductile transition metal. Pure niobium has a Mohs hardness rating similar to pure titanium, and it has similar ductility to iron. Niobium oxidizes in Earth's atmosphere very slowly, hence its application in jewelry as a hypoallergenic alternative to nickel. Niobium is often found in the minerals pyrochlore and columbite, hence the former name "columbium". Its name comes from Greek mythology: Niobe, daughter of Tantalus, the namesake of tantalum. The name reflects the great similarity between the two elements in their physical and chemical properties, which makes them difficult to distinguish.English chemist Charles Hatchett reported a new element similar to tantalum in 1801 and named it columbium. In 1809, English chemist William Hyde Wollaston wrongly concluded that tantalum and columbium were identical. German chemist Heinrich Rose determined in 1846 that tantalum ores contain a second element, which he named niobium. In 1864 and 1865, a series of scientific findings clarified that niobium and columbium were the same element (as distinguished from tantalum), and for a century both names were used interchangeably. Niobium was officially adopted as the name of the element in 1949, but the name columbium remains in current use in metallurgy in the United States. It was not until the early 20th century that niobium was first used commercially. Niobium is an important addition to high-strength low-alloy steels. Brazil is the leading producer of niobium and ferroniobium, an alloy of 60–70% niobium with iron. Niobium is used mostly in alloys, the largest part in special steel such as that used in gas pipelines. Although these alloys contain a maximum of 0.1%, the small percentage of niobium enhances the strength of the steel by scavenging carbide and nitride. The temperature stability of niobium-containing superalloys is important for its use in jet and rocket engines. Niobium is used in various superconducting materials. These alloys, also containing titanium and tin, are widely used in the superconducting magnets of MRI scanners. Other applications of niobium include welding, nuclear industries, electronics, optics, numismatics, and jewelry. In the last two applications, the low toxicity and iridescence produced by anodization are highly desired properties. Niobium is considered a technology-critical element.

ChatGPTRate this definition:0.0 / 0 votes

1. columbium

   Columbium is a metallic element that is also known as niobium. This soft, white, ductile transition metal is often found in the minerals pyrochlore and columbite, and is used primarily in alloys and steel due to its heat resistant properties. The symbol for Columbium is Cb and its atomic number is 41. It was originally named columbium in honor of Christopher Columbus, but is globally known as niobium today.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Columbiumnoun

   a rare element of the vanadium group, first found in a variety of the mineral columbite occurring in Connecticut, probably at Haddam. Atomic weight 94.2. Symbol Cb or Nb. Now more commonly called niobium

2. Etymology: [NL., fr. Columbia America.]

Matched Categories

1. • Niobium

How to pronounce columbium?

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How to say columbium in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of columbium in Chaldean Numerology is: 9

2. Pythagorean Numerology

   The numerical value of columbium in Pythagorean Numerology is: 1

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=columbium
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Columbium
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Columbium
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/columbium