Cementite is a hard and brittle intermetallic compound with the chemical formula of Fe < sub > 3 </ sub > C.

Cementite, also known as iron carbide, is a chemical compound of iron and carbon, with the formula Fe < sub > 3 </ sub > C ( or Fe < sub > 2 </ sub > C: Fe ).

Cementite is unstable and breaks down between 600-1100 ° C into ferrite and carbon, so working the hot metal must be done very carefully.

Cementite changes from ferromagnetic to paramagnetic at its Curie temperature of approximately 480 K.

( The best evidence is that he received a monthly wage of about $125, very good money in an era when top hands worked for $30 and found.

In fact, one important aspect of their very religion is the annihilation of men ''.

Now I wish to enter the American market, where the competition is very strong.

`` Now that is a very nice, a very nice '', he murmured to himself, back in his corner.

The Bourbon economic philosophy, moreover, is not very different from that of Northern conservatives.

Others are confined to vast reservations, and not only does the Australian government justifiably not wish them to be viewed as exhibits in a zoo, but on their reservations they are extremely fugitive, shunning camps, coming together only for corroborees at which their strange culture comes to its highest pitch -- which is very low indeed.

Though he is also concerned with freeing dance from pedestrian modes of activity, Merce Cunningham has selected a very different method for achieving his aim.

We are desperately in the need of such invention, for man is still very much at the mercy of man.

What appears here is shorter than what he actually said but very close to his own words.

When I try to work out my reasons for feeling that this passage is of critical significance, I come up with the following ideas, which I shall express very briefly here and revert to in a later essay.

The career of Charles 12, is obviously very similar to that of Napoleon.

he is very close to being a mental case.

This, however, cannot be done by a community whose very experience of truth is confused and incoherent: it has no absolute standard, and consequently cannot distinguish the absolute from the contingent.

His own testimony is that he has read very little in the history of the South, implying that what he knows of that history has come to him orally and that he knows the world around him primarily from his own unassisted observation.

What is more, the legends have become so sacrosanct that the very habit of self-examination or self-criticism smells of low treason, and men who practice it are defeatists and unpatriotic scoundrels.

The problem is rather to find out what is actually happening, and this is especially difficult for the reason that `` we are busily being defended from a knowledge of the present, sometimes by the very agencies -- our educational system, our mass media, our statesmen -- on which we have had to rely most heavily for understanding of ourselves ''.

`` Dear Miss Steichen: It is a very good letter you send me -- softens the intensity of this guerilla warfare I am carrying on up here.

Mr. Stavropoulos is the U.N. legal chief and a very good man, but he is not fully versed on some technical points of American law ''.

This is very uncommon ''.

What I want is to have this evidence come before Congress and if the Attorney General does not report it, as I am very sure he won't, as he has refused to do anything of the kind, I then wish that a committee of seven Representatives be appointed with power to take the evidence.

I know you are very busy now, you are writing a great deal & your book is coming out, isn't it??

It is Eromonga -- look hard, you can see with your naked eye the wooden scaffolding on the cliff ''.

It is hard to see how the situation could be otherwise.

he knows that the land is hard and pitiless.

Understanding, as he did, the difficulty of the art of poetry, and believing that the `` only technical criticism worth having in poetry is that of poets '', he felt obliged to insist upon his duty to be hard to please when it came to the review of a book of verse.

The Chicago contingent of modern critics follow Aristotle so far in this direction that it is hard to see how they can compare one poem with another for the purpose of evaluation.

It is hard not to lay most of the blame for their failures on the pope.

It is hard for me to know how I feel about Lauro Di Bosis.

He's hitting the ball hard, in the batting cage, and his whole attitude is improved over this time last year.

When we become firm enough to stand for those ideals which we know to be right, when we become hard enough to refuse to aid nations which do not permit self-determination, when we become strong enough to resist any more drifts towards socialism in our own Nation, when we recognize that our enemy is Communism not war, and when we realize that concessions to Communists do not insure peace or freedom, then, and only then will we no longer be `` soft ''.

The weekly loss is partly counterbalanced by 500 arrivals each week from West Germany, but the hard truth, says Crossman, is that `` The closing off of East Berlin without interference from the West and with the use only of East German, as distinct from Russian, troops was a major Communist victory, which dealt West Berlin a deadly, possibly a fatal, blow.

Berlin's resilience is amazing, but if it has to hire its labor in the West the struggle will be hard indeed ''.

It is, I insist, hard to define the Rayburn contribution to our political civilization because it is so massive and so widespread and so complicated, and because it goes so deep.

It is a flavor that might take a little getting used to -- not because it is unpleasant, but because the flavor is hard to define in the light of our experience with other fruits.

Aeschbacher's work is very much akin to Schnabel's, but the sound on his Decca disc is dated, and you will have a hard time locating a copy of it.

This design is hard to beat for timber hunting or for packing in a saddle scabbard.

Paperweight may be personalized on back while clay is leather hard.

Although there is no question but that the process of washing fabrics involves a number of phenomena which are related together in an extremely complicated way and that these phenomena and their interrelations are not well understood at the present, this section attempts to present briefly an up-to-date picture of the physical chemistry of washing either fabrics or hard surfaces.

It is hard to understand how he concluded that most snakes do not grow appreciably after attaining maturity ; ;

Particularly hard for the therapist to grasp are those instances in which the patient is manifesting an introject traceable to something in the therapist, some aspect of the therapist of which the latter is himself only poorly aware, and the recognition of which, as a part of himself, he finds distinctly unwelcome.