This HTML5 document contains 13 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Namespace Prefixes

Prefix	IRI
n8	http://demo.openlinksw.com/about/id/entity/http/www.dh.ketrc.com/otcontainer/data/
wdrs	http://www.w3.org/2007/05/powder-s#
skos	http://www.w3.org/2004/02/skos/core#
rdfs	http://www.w3.org/2000/01/rdf-schema#
n5	http://vocab.getty.edu/page/aat/
rdf	http://www.w3.org/1999/02/22-rdf-syntax-ns#
owl	http://www.w3.org/2002/07/owl#
n2	http://www.dh.ketrc.com/otcontainer/data/otc.owl#
xsdh	http://www.w3.org/2001/XMLSchema#

Statements

Subject Item

n2:Bronze

rdf:type

owl:Class

rdfs:subClassOf

n2:Material

rdfs:comment

Refers to a broad range of alloys of copper, specifically any non-ferrous alloy of copper, tin, and zinc or other trace metals. Bronze was made before 3,000 BCE -- possibly as early as 10,000 BCE, although its common use in tools and decorative items is dated only in later artifacts. The proportions of copper and tin vary widely, from 70 to 95 percent copper in surviving ancient artifacts. Because of the copper base, bronze may be very malleable and easy to work. By the Middle Ages in Europe, it was recognized that using the metals in certain proportions could yield specific properties. Some modern bronzes contain no tin at all, substituting other metals such as aluminum, manganese, and even zinc. Historically, the term was used interchangeably with "latten." U.S. standard bronze is composed of 90% copper, 7% tin and 3% zinc. Ancient bronze alloys sometimes contained up to 14% tin.

owl:disjointWith

n2:Clay n2:Jade n2:Glass n2:Silver n2:Gold n2:Wood

rdfs:seeAlso

n5:300010957

skos:prefLabel

bronze 青铜

wdrs:describedby

n8:otc.owl