steaditen.

/ˈstɛdʌɪt/

Etymology: < the name of J. E. Stead (1851–1923), English metallurgist + -ite suffix¹.

1. Metallurgy. A constituent of phosphorus-rich irons and steels which is a eutectic of austenite and iron phosphide (and sometimes also cementite) and contains dissolved phosphorus.

ΘΚΠ

society > occupation and work > materials > derived or manufactured material > metal > iron > [noun] > constituents of iron

sorbite1888

austenite1902

steadite1902

ledeburite1912

1902 Jrnl. Iron & Steel Inst. 61 118 Mr. A. Sauveur (Boston)..suggested [in correspondence]..‘Steadite’, to designate the eutectic alloy of iron and the phosphide Fe₃P formed in iron rich in phosphorus.

1925 Machinery XXVI. 501/1 Steadite is distributed throughout the metal and gives the abrasive action previously mentioned.

1964 S. H. Avner Introd. Physical Metall. xi. 327 Steadite is relatively brittle, and with high phosphorus content, the steadite areas tend to form a continuous network outlining the primary austenite dendrites.

1975 Brit. Foundryman LXVIII. 106/1 Phosphorus..segregates in the last portion to solidify, known as steadite, which is composed of iron, iron carbide and iron phosphide.

2. Mineralogy. A siliceous variety of apatite, usually containing iron, found as yellowish needles in basic slag.

ΘΚΠ

the world > the earth > minerals > types of mineral > phosphates > [noun] > phosphate of lime or apatite > varieties

spargelstone1804

asparagus stone1816

francolite1843

fluorapatite1849

staffelite1868

collophanite1892

fermorite1910

steadite1911

hydroxyapatite1912

wilkeite1914

collophane1917

hydroxylapatite1927

1911 V. A. Kroll in Jrnl. Iron & Steel Inst. 84 130 In the new mineral, which..he [sc. the author] distinguishes by the name of Steadite, measurement of the angles reveals the occurrence of the hexagonal system.

1950 Mineral. Mag. XXIX. 184 Steadite is frequently a late constituent to crystallize; its crystals are the commonest in the vugs of basic slags.

1951 Science 29 June 755/2 Metallographic studies..prove the presence of cohenite, steadite, and schreibersite, as well as troilite. The percentage of nickel is about double that of the meteorite fragments found in the same area.

This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018).

单词	steadite
释义	steaditen. /ˈstɛdʌɪt/ Etymology: < the name of J. E. Stead (1851–1923), English metallurgist + -ite suffix¹. 1. Metallurgy. A constituent of phosphorus-rich irons and steels which is a eutectic of austenite and iron phosphide (and sometimes also cementite) and contains dissolved phosphorus. ΘΚΠ society > occupation and work > materials > derived or manufactured material > metal > iron > [noun] > constituents of iron sorbite1888 austenite1902 steadite1902 ledeburite1912 1902 Jrnl. Iron & Steel Inst. 61 118 Mr. A. Sauveur (Boston)..suggested [in correspondence]..‘Steadite’, to designate the eutectic alloy of iron and the phosphide Fe₃P formed in iron rich in phosphorus. 1925 Machinery XXVI. 501/1 Steadite is distributed throughout the metal and gives the abrasive action previously mentioned. 1964 S. H. Avner Introd. Physical Metall. xi. 327 Steadite is relatively brittle, and with high phosphorus content, the steadite areas tend to form a continuous network outlining the primary austenite dendrites. 1975 Brit. Foundryman LXVIII. 106/1 Phosphorus..segregates in the last portion to solidify, known as steadite, which is composed of iron, iron carbide and iron phosphide. 2. Mineralogy. A siliceous variety of apatite, usually containing iron, found as yellowish needles in basic slag. ΘΚΠ the world > the earth > minerals > types of mineral > phosphates > [noun] > phosphate of lime or apatite > varieties spargelstone1804 asparagus stone1816 francolite1843 fluorapatite1849 staffelite1868 collophanite1892 fermorite1910 steadite1911 hydroxyapatite1912 wilkeite1914 collophane1917 hydroxylapatite1927 1911 V. A. Kroll in Jrnl. Iron & Steel Inst. 84 130 In the new mineral, which..he [sc. the author] distinguishes by the name of Steadite, measurement of the angles reveals the occurrence of the hexagonal system. 1950 Mineral. Mag. XXIX. 184 Steadite is frequently a late constituent to crystallize; its crystals are the commonest in the vugs of basic slags. 1951 Science 29 June 755/2 Metallographic studies..prove the presence of cohenite, steadite, and schreibersite, as well as troilite. The percentage of nickel is about double that of the meteorite fragments found in the same area. This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018). < n.1902
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