Cementation Process For Brass
In the early modern period, brass, an alloy of copper and zinc, was usually produced by a cementation process in which metallic copper was heated with calamine, a zinc ore. For details of this see calamine brass.
Read more about this topic: Cementation Process
Famous quotes containing the words process and/or brass:
“Any balance we achieve between adult and parental identities, between children’s and our own needs, works only for a time—because, as one father says, “It’s a new ball game just about every week.” So we are always in the process of learning to be parents.”
—Joan Sheingold Ditzion, Dennie, and Palmer Wolf. Ourselves and Our Children, by Boston Women’s Health Book Collective, ch. 2 (1978)
“no little brass rollers
and small easy wheels on the bottom—
my townspeople what are you thinking of!
A rough plain hearse then
with gilt wheels and no top at all.”
—William Carlos Williams (1883–1963)